3121340444042 has 32 divisors (see below), whose sum is σ = 4747952401920. Its totient is φ = 1538767874160.

The previous prime is 3121340444039. The next prime is 3121340444063. The reversal of 3121340444042 is 2404440431213.

It is a super-2 number, since 2×3121340444042² (a number of 26 digits) contains 22 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, 241602059 + ... + 241614977.

It is an arithmetic number, because the mean of its divisors is an integer number (148373512560).

Almost surely, 2^{3121340444042} is an apocalyptic number.

3121340444042 is a deficient number, since it is larger than the sum of its proper divisors (1626611957878).

3121340444042 is a wasteful number, since it uses less digits than its factorization.

3121340444042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15818.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 3121340444042 its reverse (2404440431213), we get a palindrome (5525780875255).

The spelling of 3121340444042 in words is "three trillion, one hundred twenty-one billion, three hundred forty million, four hundred forty-four thousand, forty-two".