21140002131 has 8 divisors (see below), whose sum is σ = 28193286144. Its totient is φ = 14090026440.

The previous prime is 21140002111. The next prime is 21140002153. The reversal of 21140002131 is 13120004112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21140002131 - 2⁵ = 21140002099 is a prime.

It is a super-2 number, since 2×21140002131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21140002131.

It is not an unprimeable number, because it can be changed into a prime (21140002111) by changing a digit.

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, 812131 + ... + 837756.

It is an arithmetic number, because the mean of its divisors is an integer number (3524160768).

Almost surely, 2^21140002131 is an apocalyptic number.

21140002131 is a deficient number, since it is larger than the sum of its proper divisors (7053284013).

21140002131 is a wasteful number, since it uses less digits than its factorization.

21140002131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654161.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21140002131 its reverse (13120004112), we get a palindrome (34260006243).

The spelling of 21140002131 in words is "twenty-one billion, one hundred forty million, two thousand, one hundred thirty-one".