31302123211230 has 32 divisors (see below), whose sum is σ = 75155646960000. Its totient is φ = 8343838272672.

The previous prime is 31302123211211. The next prime is 31302123211243. The reversal of 31302123211230 is 3211232120313.

It is a super-2 number, since 2×31302123211230² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31302123211230.

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, 212086480 + ... + 212234019.

It is an arithmetic number, because the mean of its divisors is an integer number (2348613967500).

Almost surely, 2^{31302123211230} is an apocalyptic number.

31302123211230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31302123211230 is an abundant number, since it is smaller than the sum of its proper divisors (43853523748770).

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

31302123211230 is a wasteful number, since it uses less digits than its factorization.

31302123211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424322968.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31302123211230 its reverse (3211232120313), we get a palindrome (34513355331543).

The spelling of 31302123211230 in words is "thirty-one trillion, three hundred two billion, one hundred twenty-three million, two hundred eleven thousand, two hundred thirty".