31113000001232 has 40 divisors (see below), whose sum is σ = 62372692583400. Its totient is φ = 15017037783552.

The previous prime is 31113000001177. The next prime is 31113000001241. The reversal of 31113000001232 is 23210000031113.

It can be written as a sum of positive squares in 4 ways, for example, as 7977438718096 + 23135561283136 = 2824436^2 + 4809944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31113000001232.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4463507 + ... + 9063602.

It is an arithmetic number, because the mean of its divisors is an integer number (1559317314585).

Almost surely, 2^{31113000001232} is an apocalyptic number.

It is an amenable number.

31113000001232 is an abundant number, since it is smaller than the sum of its proper divisors (31259692582168).

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

31113000001232 is a wasteful number, since it uses less digits than its factorization.

31113000001232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13532103 (or 13532097 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31113000001232 its reverse (23210000031113), we get a palindrome (54323000032345).

The spelling of 31113000001232 in words is "thirty-one trillion, one hundred thirteen billion, one thousand, two hundred thirty-two".