310120021012 has 24 divisors (see below), whose sum is σ = 561463176960. Its totient is φ = 149702713440.

The previous prime is 310120021007. The next prime is 310120021033. The reversal of 310120021012 is 210120021013.

It is a junction number, because it is equal to n+sod(n) for n = 310120020983 and 310120021001.

It is a congruent number.

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, 1739337 + ... + 1909327.

It is an arithmetic number, because the mean of its divisors is an integer number (23394299040).

Almost surely, 2^310120021012 is an apocalyptic number.

It is an amenable number.

310120021012 is a deficient number, since it is larger than the sum of its proper divisors (251343155948).

310120021012 is a wasteful number, since it uses less digits than its factorization.

310120021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185751 (or 185749 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 310120021012 its reverse (210120021013), we get a palindrome (520240042025).

Subtracting from 310120021012 its reverse (210120021013), we obtain a palindrome (99999999999).

The spelling of 310120021012 in words is "three hundred ten billion, one hundred twenty million, twenty-one thousand, twelve".