31331310311230 has 16 divisors (see below), whose sum is σ = 59364587958480. Its totient is φ = 11872917591552.

The previous prime is 31331310311179. The next prime is 31331310311381. The reversal of 31331310311230 is 3211301313313.

It is a super-2 number, since 2×31331310311230² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31331310311195 and 31331310311204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82450816419 + ... + 82450816798.

It is an arithmetic number, because the mean of its divisors is an integer number (3710286747405).

Almost surely, 2^{31331310311230} is an apocalyptic number.

31331310311230 is a deficient number, since it is larger than the sum of its proper divisors (28033277647250).

31331310311230 is a wasteful number, since it uses less digits than its factorization.

31331310311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164901633243.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 31331310311230 its reverse (3211301313313), we get a palindrome (34542611624543).

The spelling of 31331310311230 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred ten million, three hundred eleven thousand, two hundred thirty".