3121002100312 has 8 divisors (see below), whose sum is σ = 5851878938100. Its totient is φ = 1560501050152.

The previous prime is 3121002100283. The next prime is 3121002100351. The reversal of 3121002100312 is 2130012001213.

3121002100312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3121002100312² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195062631262 + ... + 195062631277.

Almost surely, 2^{3121002100312} is an apocalyptic number.

It is an amenable number.

3121002100312 is a deficient number, since it is larger than the sum of its proper divisors (2730876837788).

3121002100312 is a wasteful number, since it uses less digits than its factorization.

3121002100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390125262545 (or 390125262541 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 3121002100312 its reverse (2130012001213), we get a palindrome (5251014101525).

Subtracting from 3121002100312 its reverse (2130012001213), we obtain a palindrome (990990099099).

The spelling of 3121002100312 in words is "three trillion, one hundred twenty-one billion, two million, one hundred thousand, three hundred twelve".