3105431520412 has 24 divisors (see below), whose sum is σ = 5988649698416. Its totient is φ = 1399944083328.

The previous prime is 3105431520403. The next prime is 3105431520473. The reversal of 3105431520412 is 2140251345013.

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, 694414473 + ... + 694418944.

Almost surely, 2^{3105431520412} is an apocalyptic number.

It is an amenable number.

3105431520412 is a deficient number, since it is larger than the sum of its proper divisors (2883218178004).

3105431520412 is a wasteful number, since it uses less digits than its factorization.

3105431520412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388833477 (or 1388833475 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 3105431520412 its reverse (2140251345013), we get a palindrome (5245682865425).

The spelling of 3105431520412 in words is "three trillion, one hundred five billion, four hundred thirty-one million, five hundred twenty thousand, four hundred twelve".