3121420032245 has 16 divisors (see below), whose sum is σ = 3942976501440. Its totient is φ = 2365629727104.

The previous prime is 3121420032233. The next prime is 3121420032251. The reversal of 3121420032245 is 5422300241213.

It is a cyclic number.

It is not a de Polignac number, because 3121420032245 - 2²² = 3121415837941 is a prime.

It is a Curzon number.

It is a congruent number.

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, 2436662 + ... + 3490008.

It is an arithmetic number, because the mean of its divisors is an integer number (246436031340).

Almost surely, 2^{3121420032245} is an apocalyptic number.

It is an amenable number.

3121420032245 is a deficient number, since it is larger than the sum of its proper divisors (821556469195).

3121420032245 is a wasteful number, since it uses less digits than its factorization.

3121420032245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084564.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 3121420032245 its reverse (5422300241213), we get a palindrome (8543720273458).

The spelling of 3121420032245 in words is "three trillion, one hundred twenty-one billion, four hundred twenty million, thirty-two thousand, two hundred forty-five".