30831123421 has 8 divisors (see below), whose sum is σ = 36767551104. Its totient is φ = 25277691120.

The previous prime is 30831123391. The next prime is 30831123431. The reversal of 30831123421 is 12432113803.

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 30831123421 - 2²⁹ = 30294252509 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 30831123421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30831123431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95748670 + ... + 95748991.

It is an arithmetic number, because the mean of its divisors is an integer number (4595943888).

Almost surely, 2^30831123421 is an apocalyptic number.

It is an amenable number.

30831123421 is a deficient number, since it is larger than the sum of its proper divisors (5936427683).

30831123421 is a wasteful number, since it uses less digits than its factorization.

30831123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191497691.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 30831123421 in words is "thirty billion, eight hundred thirty-one million, one hundred twenty-three thousand, four hundred twenty-one".