31311003320102 has 32 divisors (see below), whose sum is σ = 52001821525248. Its totient is φ = 14019937540000.

The previous prime is 31311003320081. The next prime is 31311003320119. The reversal of 31311003320102 is 20102330011313.

It is a super-2 number, since 2×31311003320102² (a number of 28 digits) contains 22 as substring.

It is a congruent 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, 6641924 + ... + 10331367.

It is an arithmetic number, because the mean of its divisors is an integer number (1625056922664).

Almost surely, 2^{31311003320102} is an apocalyptic number.

31311003320102 is a deficient number, since it is larger than the sum of its proper divisors (20690818205146).

31311003320102 is a wasteful number, since it uses less digits than its factorization.

31311003320102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16974556.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31311003320102 its reverse (20102330011313), we get a palindrome (51413333331415).

The spelling of 31311003320102 in words is "thirty-one trillion, three hundred eleven billion, three million, three hundred twenty thousand, one hundred two".