3121234416156 has 12 divisors (see below), whose sum is σ = 7282880304392. Its totient is φ = 1040411472048.

The previous prime is 3121234416103. The next prime is 3121234416187. The reversal of 3121234416156 is 6516144321213.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130051433995 + ... + 130051434018.

Almost surely, 2^{3121234416156} is an apocalyptic number.

It is an amenable number.

3121234416156 is an abundant number, since it is smaller than the sum of its proper divisors (4161645888236).

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

3121234416156 is a wasteful number, since it uses less digits than its factorization.

3121234416156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260102868020 (or 260102868018 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

Adding to 3121234416156 its reverse (6516144321213), we get a palindrome (9637378737369).

The spelling of 3121234416156 in words is "three trillion, one hundred twenty-one billion, two hundred thirty-four million, four hundred sixteen thousand, one hundred fifty-six".