31234111002 has 16 divisors (see below), whose sum is σ = 69409135680. Its totient is φ = 10411370316.

The previous prime is 31234110983. The next prime is 31234111003. The reversal of 31234111002 is 20011143213.

31234111002 is a `hidden beast` number, since 312 + 341 + 1 + 10 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (31234111003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289204678 + ... + 289204785.

It is an arithmetic number, because the mean of its divisors is an integer number (4338070980).

Almost surely, 2^31234111002 is an apocalyptic number.

31234111002 is an abundant number, since it is smaller than the sum of its proper divisors (38175024678).

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

31234111002 is a wasteful number, since it uses less digits than its factorization.

31234111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578409474 (or 578409468 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31234111002 its reverse (20011143213), we get a palindrome (51245254215).

The spelling of 31234111002 in words is "thirty-one billion, two hundred thirty-four million, one hundred eleven thousand, two".