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120213311023 = 13229159715359
BaseRepresentation
bin110111111110101000…
…1011000111000101111
3102111021212112221012201
41233331101120320233
53432144101423043
6131120352242331
711453666166301
oct1577521307057
9374255487181
10120213311023
1146a89309923
121b36b2403a7
13b44a452300
145b657d1971
1531d8a8dc4d
hex1bfd458e2f

120213311023 has 24 divisors (see below), whose sum is σ = 134753587200. Its totient is φ = 107065655424.

The previous prime is 120213310993. The next prime is 120213311051. The reversal of 120213311023 is 320113312021.

It is not a de Polignac number, because 120213311023 - 25 = 120213310991 is a prime.

It is a super-2 number, since 2×1202133110232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120213311723) 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 23 ways as a sum of consecutive naturals, for example, 7819218 + ... + 7834576.

It is an arithmetic number, because the mean of its divisors is an integer number (5614732800).

Almost surely, 2120213311023 is an apocalyptic number.

120213311023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120213311023 is a deficient number, since it is larger than the sum of its proper divisors (14540276177).

120213311023 is a wasteful number, since it uses less digits than its factorization.

120213311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17011 (or 16998 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120213311023 its reverse (320113312021), we get a palindrome (440326623044).

The spelling of 120213311023 in words is "one hundred twenty billion, two hundred thirteen million, three hundred eleven thousand, twenty-three".

Divisors: 1 13 29 169 377 1597 4901 15359 20761 46313 199667 269893 445411 602069 2595671 5790343 7826897 24528323 75274459 318868199 711321367 4145286587 9247177771 120213311023