21314124402 has 16 divisors (see below), whose sum is σ = 42715073952. Its totient is φ = 7090237280.

The previous prime is 21314124383. The next prime is 21314124407. The reversal of 21314124402 is 20442141312.

It is not an unprimeable number, because it can be changed into a prime (21314124407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3614523 + ... + 3620414.

It is an arithmetic number, because the mean of its divisors is an integer number (2669692122).

Almost surely, 2^21314124402 is an apocalyptic number.

21314124402 is an abundant number, since it is smaller than the sum of its proper divisors (21400949550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21314124402 is a wasteful number, since it uses less digits than its factorization.

21314124402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235433.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21314124402 its reverse (20442141312), we get a palindrome (41756265714).

The spelling of 21314124402 in words is "twenty-one billion, three hundred fourteen million, one hundred twenty-four thousand, four hundred two".