31023212102130 has 16 divisors (see below), whose sum is σ = 74455709045184. Its totient is φ = 8272856560560.

The previous prime is 31023212102123. The next prime is 31023212102293. The reversal of 31023212102130 is 3120121232013.

It is a junction number, because it is equal to n+sod(n) for n = 31023212102097 and 31023212102106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517053535006 + ... + 517053535065.

It is an arithmetic number, because the mean of its divisors is an integer number (4653481815324).

Almost surely, 2^{31023212102130} is an apocalyptic number.

31023212102130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31023212102130 is an abundant number, since it is smaller than the sum of its proper divisors (43432496943054).

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

31023212102130 is a wasteful number, since it uses less digits than its factorization.

31023212102130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034107070081.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31023212102130 its reverse (3120121232013), we get a palindrome (34143333334143).

The spelling of 31023212102130 in words is "thirty-one trillion, twenty-three billion, two hundred twelve million, one hundred two thousand, one hundred thirty".