31023312121230 has 64 divisors (see below), whose sum is σ = 87472723419648. Its totient is φ = 6942279634560.

The previous prime is 31023312121201. The next prime is 31023312121231. The reversal of 31023312121230 is 3212121332013.

It is a self number, because there is not a number n which added to its sum of digits gives 31023312121230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023312121231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3615766354 + ... + 3615774933.

It is an arithmetic number, because the mean of its divisors is an integer number (1366761303432).

Almost surely, 2^{31023312121230} is an apocalyptic number.

31023312121230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31023312121230 is an abundant number, since it is smaller than the sum of its proper divisors (56449411298418).

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

31023312121230 is a wasteful number, since it uses less digits than its factorization.

31023312121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231541321.

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

Adding to 31023312121230 its reverse (3212121332013), we get a palindrome (34235433453243).

The spelling of 31023312121230 in words is "thirty-one trillion, twenty-three billion, three hundred twelve million, one hundred twenty-one thousand, two hundred thirty".