3121315055 has 8 divisors (see below), whose sum is σ = 3809062800. Its totient is φ = 2454728896.

The previous prime is 3121315051. The next prime is 3121315063. The reversal of 3121315055 is 5505131213.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3121315055 - 2² = 3121315051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121315051) 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, 5290070 + ... + 5290659.

It is an arithmetic number, because the mean of its divisors is an integer number (476132850).

Almost surely, 2^3121315055 is an apocalyptic number.

3121315055 is a deficient number, since it is larger than the sum of its proper divisors (687747745).

3121315055 is a wasteful number, since it uses less digits than its factorization.

3121315055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10580793.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 3121315055 is about 55868.7305654961. The cubic root of 3121315055 is about 1461.4339847070.

Adding to 3121315055 its reverse (5505131213), we get a palindrome (8626446268).

The spelling of 3121315055 in words is "three billion, one hundred twenty-one million, three hundred fifteen thousand, fifty-five".