31331310212010 has 32 divisors (see below), whose sum is σ = 75287863611072. Its totient is φ = 8344713934080.

The previous prime is 31331310212003. The next prime is 31331310212029. The reversal of 31331310212010 is 1021201313313.

It is a happy number.

It is a super-2 number, since 2×31331310212010² (a number of 28 digits) contains 22 as substring.

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, 643857919 + ... + 643906578.

It is an arithmetic number, because the mean of its divisors is an integer number (2352745737846).

Almost surely, 2^{31331310212010} is an apocalyptic number.

31331310212010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31331310212010 is an abundant number, since it is smaller than the sum of its proper divisors (43956553399062).

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

31331310212010 is a wasteful number, since it uses less digits than its factorization.

31331310212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287765318.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31331310212010 its reverse (1021201313313), we get a palindrome (32352511525323).

The spelling of 31331310212010 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred ten million, two hundred twelve thousand, ten".