30340991251 has 12 divisors (see below), whose sum is σ = 30897349600. Its totient is φ = 29794477968.

The previous prime is 30340991231. The next prime is 30340991269. The reversal of 30340991251 is 15219904303.

It is not a de Polignac number, because 30340991251 - 2²¹ = 30338894099 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 30340991251.

It is not an unprimeable number, because it can be changed into a prime (30340991201) 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, 3612565 + ... + 3620953.

Almost surely, 2^30340991251 is an apocalyptic number.

30340991251 is a deficient number, since it is larger than the sum of its proper divisors (556358349).

30340991251 is an equidigital number, since it uses as much as digits as its factorization.

30340991251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9546 (or 9487 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 30340991251 in words is "thirty billion, three hundred forty million, nine hundred ninety-one thousand, two hundred fifty-one".