21130414402 has 16 divisors (see below), whose sum is σ = 31927232160. Its totient is φ = 10488273088.

The previous prime is 21130414399. The next prime is 21130414421. The reversal of 21130414402 is 20441403112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90474 + ... + 224602.

It is an arithmetic number, because the mean of its divisors is an integer number (1995452010).

Almost surely, 2^21130414402 is an apocalyptic number.

21130414402 is a deficient number, since it is larger than the sum of its proper divisors (10796817758).

21130414402 is a wasteful number, since it uses less digits than its factorization.

21130414402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134705.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21130414402 its reverse (20441403112), we get a palindrome (41571817514).

The spelling of 21130414402 in words is "twenty-one billion, one hundred thirty million, four hundred fourteen thousand, four hundred two".