21401032299 has 32 divisors (see below), whose sum is σ = 31599072000. Its totient is φ = 12829106304.

The previous prime is 21401032291. The next prime is 21401032307. The reversal of 21401032299 is 99223010412.

It is an interprime number because it is at equal distance from previous prime (21401032291) and next prime (21401032307).

It is not a de Polignac number, because 21401032299 - 2³ = 21401032291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21401032291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12192 + ... + 207245.

It is an arithmetic number, because the mean of its divisors is an integer number (987471000).

Almost surely, 2^21401032299 is an apocalyptic number.

21401032299 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

21401032299 is a deficient number, since it is larger than the sum of its proper divisors (10198039701).

21401032299 is a wasteful number, since it uses less digits than its factorization.

21401032299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219547.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 21401032299 in words is "twenty-one billion, four hundred one million, thirty-two thousand, two hundred ninety-nine".