30972454351 has 4 divisors (see below), whose sum is σ = 30976379352. Its totient is φ = 30968529352.

The previous prime is 30972454349. The next prime is 30972454399. The reversal of 30972454351 is 15345427903.

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 30972454351 - 2¹ = 30972454349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30972454298 and 30972454307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30972454951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950640 + ... + 1966453.

It is an arithmetic number, because the mean of its divisors is an integer number (7744094838).

Almost surely, 2^30972454351 is an apocalyptic number.

30972454351 is a deficient number, since it is larger than the sum of its proper divisors (3925001).

30972454351 is an equidigital number, since it uses as much as digits as its factorization.

30972454351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925000.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 30972454351 in words is "thirty billion, nine hundred seventy-two million, four hundred fifty-four thousand, three hundred fifty-one".