3121125535452 has 48 divisors (see below), whose sum is σ = 7289648660000. Its totient is φ = 1039372259328.

The previous prime is 3121125535441. The next prime is 3121125535453. The reversal of 3121125535452 is 2545355211213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121125535452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121125535453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119786058 + ... + 119812110.

Almost surely, 2^{3121125535452} is an apocalyptic number.

It is an amenable number.

3121125535452 is an abundant number, since it is smaller than the sum of its proper divisors (4168523124548).

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

3121125535452 is a wasteful number, since it uses less digits than its factorization.

3121125535452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35302 (or 35300 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The spelling of 3121125535452 in words is "three trillion, one hundred twenty-one billion, one hundred twenty-five million, five hundred thirty-five thousand, four hundred fifty-two".