29997102923 has 4 divisors (see below), whose sum is σ = 30125846088. Its totient is φ = 29868359760.

The previous prime is 29997102917. The next prime is 29997102977. The reversal of 29997102923 is 32920179992.

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 29997102923 - 2²⁸ = 29728667467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29997105923) 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, 64371233 + ... + 64371698.

It is an arithmetic number, because the mean of its divisors is an integer number (7531461522).

Almost surely, 2^29997102923 is an apocalyptic number.

29997102923 is a deficient number, since it is larger than the sum of its proper divisors (128743165).

29997102923 is a wasteful number, since it uses less digits than its factorization.

29997102923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128743164.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 29997102923 in words is "twenty-nine billion, nine hundred ninety-seven million, one hundred two thousand, nine hundred twenty-three".