21367112076423 has 64 divisors (see below), whose sum is σ = 33508888151040. Its totient is φ = 13440529065600.

The previous prime is 21367112076341. The next prime is 21367112076487. The reversal of 21367112076423 is 32467021176312.

It is a happy number.

21367112076423 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 7 + 11 + 207 + 6 + 423 = 666.

It is not a de Polignac number, because 21367112076423 - 2¹⁴ = 21367112060039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21367112076523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1857436 + ... + 6795902.

It is an arithmetic number, because the mean of its divisors is an integer number (523576377360).

Almost surely, 2^{21367112076423} is an apocalyptic number.

21367112076423 is a deficient number, since it is larger than the sum of its proper divisors (12141776074617).

21367112076423 is a wasteful number, since it uses less digits than its factorization.

21367112076423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938645 (or 4938639 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 21367112076423 in words is "twenty-one trillion, three hundred sixty-seven billion, one hundred twelve million, seventy-six thousand, four hundred twenty-three".