13340643251 has 8 divisors (see below), whose sum is σ = 14399579040. Its totient is φ = 12286383552.

The previous prime is 13340643233. The next prime is 13340643269. The reversal of 13340643251 is 15234604331.

It is an interprime number because it is at equal distance from previous prime (13340643233) and next prime (13340643269).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13340643251 - 2⁶ = 13340643187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13340603251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163090 + ... + 1174503.

It is an arithmetic number, because the mean of its divisors is an integer number (1799947380).

Almost surely, 2^13340643251 is an apocalyptic number.

13340643251 is a deficient number, since it is larger than the sum of its proper divisors (1058935789).

13340643251 is a wasteful number, since it uses less digits than its factorization.

13340643251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338045.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 13340643251 in words is "thirteen billion, three hundred forty million, six hundred forty-three thousand, two hundred fifty-one".