1231001313102 has 64 divisors (see below), whose sum is σ = 3053646731520. Its totient is φ = 364355560800.

The previous prime is 1231001313079. The next prime is 1231001313119. The reversal of 1231001313102 is 2013131001321.

1231001313102 is a `hidden beast` number, since 12 + 310 + 0 + 1 + 31 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24072049 + ... + 24123132.

It is an arithmetic number, because the mean of its divisors is an integer number (47713230180).

Almost surely, 2^{1231001313102} is an apocalyptic number.

1231001313102 is an abundant number, since it is smaller than the sum of its proper divisors (1822645418418).

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

1231001313102 is a wasteful number, since it uses less digits than its factorization.

1231001313102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48195246 (or 48195240 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1231001313102 its reverse (2013131001321), we get a palindrome (3244132314423).

The spelling of 1231001313102 in words is "one trillion, two hundred thirty-one billion, one million, three hundred thirteen thousand, one hundred two".