2403312013251 has 12 divisors (see below), whose sum is σ = 3472777219912. Its totient is φ = 1601595762336.

The previous prime is 2403312013159. The next prime is 2403312013253. The reversal of 2403312013251 is 1523102133042.

2403312013251 is a `hidden beast` number, since 2 + 4 + 0 + 331 + 2 + 0 + 1 + 325 + 1 = 666.

2403312013251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2403312013251 is a prime.

It is a super-4 number, since 4×2403312013251⁴ (a number of 51 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2403312013253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50995681 + ... + 51042786.

Almost surely, 2^{2403312013251} is an apocalyptic number.

2403312013251 is a deficient number, since it is larger than the sum of its proper divisors (1069465206661).

2403312013251 is a wasteful number, since it uses less digits than its factorization.

2403312013251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102041090 (or 102041087 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 2403312013251 its reverse (1523102133042), we get a palindrome (3926414146293).

The spelling of 2403312013251 in words is "two trillion, four hundred three billion, three hundred twelve million, thirteen thousand, two hundred fifty-one".