15313420454251 has 4 divisors (see below), whose sum is σ = 15433998568192. Its totient is φ = 15192842340312.

The previous prime is 15313420454243. The next prime is 15313420454257. The reversal of 15313420454251 is 15245402431351.

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 15313420454251 - 2³ = 15313420454243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15313420454257) 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, 60289056780 + ... + 60289057033.

It is an arithmetic number, because the mean of its divisors is an integer number (3858499642048).

Almost surely, 2^{15313420454251} is an apocalyptic number.

15313420454251 is a deficient number, since it is larger than the sum of its proper divisors (120578113941).

15313420454251 is a wasteful number, since it uses less digits than its factorization.

15313420454251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120578113940.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 15313420454251 in words is "fifteen trillion, three hundred thirteen billion, four hundred twenty million, four hundred fifty-four thousand, two hundred fifty-one".