21123302095 has 16 divisors (see below), whose sum is σ = 28993278528. Its totient is φ = 14472460800.

The previous prime is 21123302059. The next prime is 21123302107. The reversal of 21123302095 is 59020332112.

It is not a de Polignac number, because 21123302095 - 2¹³ = 21123293903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209224 + ... + 293293.

It is an arithmetic number, because the mean of its divisors is an integer number (1812079908).

Almost surely, 2^21123302095 is an apocalyptic number.

21123302095 is a deficient number, since it is larger than the sum of its proper divisors (7869976433).

21123302095 is a wasteful number, since it uses less digits than its factorization.

21123302095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503730.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 21123302095 in words is "twenty-one billion, one hundred twenty-three million, three hundred two thousand, ninety-five".