30968182161023 has 4 divisors (see below), whose sum is σ = 30969655524360. Its totient is φ = 30966708797688.

The previous prime is 30968182160977. The next prime is 30968182161181. The reversal of 30968182161023 is 32016128186903.

It is a happy number.

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 30968182161023 - 2¹⁸ = 30968181898879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30968182161523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736650140 + ... + 736692177.

It is an arithmetic number, because the mean of its divisors is an integer number (7742413881090).

Almost surely, 2^{30968182161023} is an apocalyptic number.

30968182161023 is a deficient number, since it is larger than the sum of its proper divisors (1473363337).

30968182161023 is a wasteful number, since it uses less digits than its factorization.

30968182161023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473363336.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 30968182161023 in words is "thirty trillion, nine hundred sixty-eight billion, one hundred eighty-two million, one hundred sixty-one thousand, twenty-three".