21134074401 has 12 divisors (see below), whose sum is σ = 33302178000. Its totient is φ = 12808529880.

The previous prime is 21134074397. The next prime is 21134074411. The reversal of 21134074401 is 10447043112.

21134074401 is a `hidden beast` number, since 211 + 3 + 4 + 0 + 7 + 440 + 1 = 666.

It is not a de Polignac number, because 21134074401 - 2² = 21134074397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21134074411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106737651 + ... + 106737848.

It is an arithmetic number, because the mean of its divisors is an integer number (2775181500).

Almost surely, 2^21134074401 is an apocalyptic number.

It is an amenable number.

21134074401 is a deficient number, since it is larger than the sum of its proper divisors (12168103599).

21134074401 is a wasteful number, since it uses less digits than its factorization.

21134074401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213475516 (or 213475513 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 21134074401 in words is "twenty-one billion, one hundred thirty-four million, seventy-four thousand, four hundred one".