31211310130 has 64 divisors (see below), whose sum is σ = 75430994688. Its totient is φ = 8979874560.

The previous prime is 31211310121. The next prime is 31211310161. The reversal of 31211310130 is 3101311213.

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, 1548997 + ... + 1569016.

It is an arithmetic number, because the mean of its divisors is an integer number (1178609292).

Almost surely, 2^31211310130 is an apocalyptic number.

31211310130 is an abundant number, since it is smaller than the sum of its proper divisors (44219684558).

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

31211310130 is a wasteful number, since it uses less digits than its factorization.

31211310130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118051.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31211310130 its reverse (3101311213), we get a palindrome (34312621343).

The spelling of 31211310130 in words is "thirty-one billion, two hundred eleven million, three hundred ten thousand, one hundred thirty".