21140011402 has 16 divisors (see below), whose sum is σ = 32609822400. Its totient is φ = 10274096800.

The previous prime is 21140011351. The next prime is 21140011427. The reversal of 21140011402 is 20411004112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995974 + ... + 1016977.

It is an arithmetic number, because the mean of its divisors is an integer number (2038113900).

Almost surely, 2^21140011402 is an apocalyptic number.

21140011402 is a deficient number, since it is larger than the sum of its proper divisors (11469810998).

21140011402 is a wasteful number, since it uses less digits than its factorization.

21140011402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013101.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21140011402 its reverse (20411004112), we get a palindrome (41551015514).

The spelling of 21140011402 in words is "twenty-one billion, one hundred forty million, eleven thousand, four hundred two".