3121066730452 has 48 divisors (see below), whose sum is σ = 6088245101568. Its totient is φ = 1387781687520.

The previous prime is 3121066730447. The next prime is 3121066730459. The reversal of 3121066730452 is 2540376601213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121066730459) 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, 3729343 + ... + 4488889.

It is an arithmetic number, because the mean of its divisors is an integer number (126838439616).

Almost surely, 2^{3121066730452} is an apocalyptic number.

It is an amenable number.

3121066730452 is a deficient number, since it is larger than the sum of its proper divisors (2967178371116).

3121066730452 is a wasteful number, since it uses less digits than its factorization.

3121066730452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761596 (or 761594 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 3121066730452 in words is "three trillion, one hundred twenty-one billion, sixty-six million, seven hundred thirty thousand, four hundred fifty-two".