3215121231504 has 80 divisors (see below), whose sum is σ = 10222436749952. Its totient is φ = 847944059904.

The previous prime is 3215121231433. The next prime is 3215121231589. The reversal of 3215121231504 is 4051321215123.

It is a happy number.

It is a super-3 number, since 3×3215121231504³ (a number of 38 digits) contains 333 as substring.

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, 368026909 + ... + 368035644.

Almost surely, 2^{3215121231504} is an apocalyptic number.

It is an amenable number.

3215121231504 is an abundant number, since it is smaller than the sum of its proper divisors (7007315518448).

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

3215121231504 is a wasteful number, since it uses less digits than its factorization.

3215121231504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736062584 (or 736062578 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 3215121231504 its reverse (4051321215123), we get a palindrome (7266442446627).

It can be divided in two parts, 3215121 and 231504, that added together give a triangular number (3446625 = T₂₆₂₅).

The spelling of 3215121231504 in words is "three trillion, two hundred fifteen billion, one hundred twenty-one million, two hundred thirty-one thousand, five hundred four".