30812943523 has 2 divisors, whose sum is σ = 30812943524. Its totient is φ = 30812943522.

The previous prime is 30812943463. The next prime is 30812943593. The reversal of 30812943523 is 32534921803.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30812943523 - 2²⁹ = 30276072611 is a prime.

It is not a weakly prime, because it can be changed into another prime (30812943593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15406471761 + 15406471762.

It is an arithmetic number, because the mean of its divisors is an integer number (15406471762).

Almost surely, 2^30812943523 is an apocalyptic number.

30812943523 is a deficient number, since it is larger than the sum of its proper divisors (1).

30812943523 is an equidigital number, since it uses as much as digits as its factorization.

30812943523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 30812943523 in words is "thirty billion, eight hundred twelve million, nine hundred forty-three thousand, five hundred twenty-three".