3105012321257 has 24 divisors (see below), whose sum is σ = 3944218338720. Its totient is φ = 2417091788160.

The previous prime is 3105012321241. The next prime is 3105012321259. The reversal of 3105012321257 is 7521232105013.

It is not a de Polignac number, because 3105012321257 - 2⁴ = 3105012321241 is a prime.

It is a super-2 number, since 2×3105012321257² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3105012321259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2310803 + ... + 3398504.

It is an arithmetic number, because the mean of its divisors is an integer number (164342430780).

Almost surely, 2^{3105012321257} is an apocalyptic number.

It is an amenable number.

3105012321257 is a deficient number, since it is larger than the sum of its proper divisors (839206017463).

3105012321257 is a wasteful number, since it uses less digits than its factorization.

3105012321257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710341 (or 5710334 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 3105012321257 in words is "three trillion, one hundred five billion, twelve million, three hundred twenty-one thousand, two hundred fifty-seven".