31102104530 has 32 divisors (see below), whose sum is σ = 67348920960. Its totient is φ = 10102337280.

The previous prime is 31102104457. The next prime is 31102104569. The reversal of 31102104530 is 3540120113.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11691191 + ... + 11693850.

It is an arithmetic number, because the mean of its divisors is an integer number (2104653780).

Almost surely, 2^31102104530 is an apocalyptic number.

31102104530 is an abundant number, since it is smaller than the sum of its proper divisors (36246816430).

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

31102104530 is a wasteful number, since it uses less digits than its factorization.

31102104530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23385074.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 31102104530 its reverse (3540120113), we get a palindrome (34642224643).

The spelling of 31102104530 in words is "thirty-one billion, one hundred two million, one hundred four thousand, five hundred thirty".