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1213232302101 = 3404410767367
BaseRepresentation
bin10001101001111010010…
…001111100100000010101
311021222120020121201000110
4101221322101330200111
5124334144432131401
62325203510433233
7153440012262201
oct21517221744025
94258506551013
101213232302101
11428590007556
12177171062819
138a53ab43771
1442a13a83b01
152185b7279d6
hex11a7a47c815

1213232302101 has 4 divisors (see below), whose sum is σ = 1617643069472. Its totient is φ = 808821534732.

The previous prime is 1213232302081. The next prime is 1213232302109. The reversal of 1213232302101 is 1012032323121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1213232302101 - 237 = 1075793348629 is a prime.

It is a super-2 number, since 2×12132323021012 (a number of 25 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 (1213232302109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202205383681 + ... + 202205383686.

It is an arithmetic number, because the mean of its divisors is an integer number (404410767368).

Almost surely, 21213232302101 is an apocalyptic number.

It is an amenable number.

1213232302101 is a deficient number, since it is larger than the sum of its proper divisors (404410767371).

1213232302101 is an equidigital number, since it uses as much as digits as its factorization.

1213232302101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404410767370.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1213232302101 its reverse (1012032323121), we get a palindrome (2225264625222).

The spelling of 1213232302101 in words is "one trillion, two hundred thirteen billion, two hundred thirty-two million, three hundred two thousand, one hundred one".

Divisors: 1 3 404410767367 1213232302101