1312100123232 has 24 divisors (see below), whose sum is σ = 3444262823736. Its totient is φ = 437366707712.

The previous prime is 1312100123231. The next prime is 1312100123251. The reversal of 1312100123232 is 2323210012131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1312100123232² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312100123199 and 1312100123208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312100123231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6833854713 + ... + 6833854904.

It is an arithmetic number, because the mean of its divisors is an integer number (143510950989).

Almost surely, 2^{1312100123232} is an apocalyptic number.

1312100123232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312100123232 is an abundant number, since it is smaller than the sum of its proper divisors (2132162700504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312100123232 is a wasteful number, since it uses less digits than its factorization.

1312100123232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13667709630 (or 13667709622 counting only the distinct ones).

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

Adding to 1312100123232 its reverse (2323210012131), we get a palindrome (3635310135363).

The spelling of 1312100123232 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred twenty-three thousand, two hundred thirty-two".