31321111001010 has 32 divisors (see below), whose sum is σ = 77004097293312. Its totient is φ = 8148581723520.

The previous prime is 31321111001003. The next prime is 31321111001069. The reversal of 31321111001010 is 1010011112313.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 12732157714 + ... + 12732160173.

It is an arithmetic number, because the mean of its divisors is an integer number (2406378040416).

Almost surely, 2^{31321111001010} is an apocalyptic number.

31321111001010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31321111001010 is an abundant number, since it is smaller than the sum of its proper divisors (45682986292302).

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

31321111001010 is a wasteful number, since it uses less digits than its factorization.

31321111001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25464317938.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 31321111001010 its reverse (1010011112313), we get a palindrome (32331122113323).

The spelling of 31321111001010 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred eleven million, one thousand, ten".