31012013010 has 32 divisors (see below), whose sum is σ = 81195089472. Its totient is φ = 7518063680.

The previous prime is 31012012987. The next prime is 31012013057. The reversal of 31012013010 is 1031021013.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46987569 + ... + 46988228.

It is an arithmetic number, because the mean of its divisors is an integer number (2537346546).

Almost surely, 2^31012013010 is an apocalyptic number.

31012013010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31012013010 is an abundant number, since it is smaller than the sum of its proper divisors (50183076462).

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

31012013010 is a wasteful number, since it uses less digits than its factorization.

31012013010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93975818.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31012013010 its reverse (1031021013), we get a palindrome (32043034023).

The spelling of 31012013010 in words is "thirty-one billion, twelve million, thirteen thousand, ten".