5123146520251 has 4 divisors (see below), whose sum is σ = 5123482281400. Its totient is φ = 5122810759104.

The previous prime is 5123146520231. The next prime is 5123146520281. The reversal of 5123146520251 is 1520256413215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5123146520251 - 2⁹ = 5123146519739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5123146520251.

It is not an unprimeable number, because it can be changed into a prime (5123146520231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167857686 + ... + 167888203.

It is an arithmetic number, because the mean of its divisors is an integer number (1280870570350).

Almost surely, 2^{5123146520251} is an apocalyptic number.

5123146520251 is a deficient number, since it is larger than the sum of its proper divisors (335761149).

5123146520251 is a wasteful number, since it uses less digits than its factorization.

5123146520251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335761148.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 5123146520251 in words is "five trillion, one hundred twenty-three billion, one hundred forty-six million, five hundred twenty thousand, two hundred fifty-one".