3121252521213 has 8 divisors (see below), whose sum is σ = 4274147596768. Its totient is φ = 2024596229904.

The previous prime is 3121252521197. The next prime is 3121252521239.

3121252521213 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3121252521213 - 2⁴ = 3121252521197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121252521263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14059695931 + ... + 14059696152.

It is an arithmetic number, because the mean of its divisors is an integer number (534268449596).

Almost surely, 2^{3121252521213} is an apocalyptic number.

It is an amenable number.

3121252521213 is a deficient number, since it is larger than the sum of its proper divisors (1152895075555).

3121252521213 is a wasteful number, since it uses less digits than its factorization.

3121252521213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28119392123.

The product of its digits is 7200, while the sum is 30.

The spelling of 3121252521213 in words is "three trillion, one hundred twenty-one billion, two hundred fifty-two million, five hundred twenty-one thousand, two hundred thirteen".