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1213230202023 = 374338917331993
BaseRepresentation
bin10001101001111010001…
…001111011110010100111
311021222120002200000020210
4101221322021323302213
5124334143412431043
62325203353430503
7153436655364420
oct21517211736247
94258502600223
101213230202023
11428589902754
1217717040b433
138a53a589908
1442a13698647
152185b460633
hex11a7a27bca7

1213230202023 has 64 divisors (see below), whose sum is σ = 1898635115520. Its totient is φ = 674682559488.

The previous prime is 1213230201977. The next prime is 1213230202027. The reversal of 1213230202023 is 3202020323121.

It is a happy number.

It is not a de Polignac number, because 1213230202023 - 28 = 1213230201767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213230202027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 608744715 + ... + 608746707.

It is an arithmetic number, because the mean of its divisors is an integer number (29666173680).

Almost surely, 21213230202023 is an apocalyptic number.

1213230202023 is a deficient number, since it is larger than the sum of its proper divisors (685404913497).

1213230202023 is a wasteful number, since it uses less digits than its factorization.

1213230202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1213230202023 its reverse (3202020323121), we get a palindrome (4415250525144).

The spelling of 1213230202023 in words is "one trillion, two hundred thirteen billion, two hundred thirty million, two hundred two thousand, twenty-three".

Divisors: 1 3 7 21 43 129 301 389 903 1167 1733 1993 2723 5199 5979 8169 12131 13951 16727 36393 41853 50181 74519 85699 117089 223557 257097 351267 521633 599893 674137 775277 1564899 1799679 2022411 2325831 3453869 4718959 5426939 10361607 14156877 16280817 24177083 28987891 33336911 72531249 86963673 100010733 148516367 202915237 233358377 445549101 608745711 700075131 1039614569 1343555041 3118843707 4030665123 9404885287 28214655861 57772866763 173318600289 404410067341 1213230202023