3157317770321 has 32 divisors (see below), whose sum is σ = 3724572112128. Its totient is φ = 2638590935040.

The previous prime is 3157317770279. The next prime is 3157317770389. The reversal of 3157317770321 is 1230777137513.

It is a cyclic number.

It is not a de Polignac number, because 3157317770321 - 2²⁶ = 3157250661457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3157317770021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249643220 + ... + 249655866.

It is an arithmetic number, because the mean of its divisors is an integer number (116392878504).

Almost surely, 2^{3157317770321} is an apocalyptic number.

It is an amenable number.

3157317770321 is a deficient number, since it is larger than the sum of its proper divisors (567254341807).

3157317770321 is a wasteful number, since it uses less digits than its factorization.

3157317770321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19721.

The product of its (nonzero) digits is 648270, while the sum is 47.

The spelling of 3157317770321 in words is "three trillion, one hundred fifty-seven billion, three hundred seventeen million, seven hundred seventy thousand, three hundred twenty-one".