21400231102 has 32 divisors (see below), whose sum is σ = 33179507712. Its totient is φ = 10346385504.

The previous prime is 21400231093. The next prime is 21400231103. The reversal of 21400231102 is 20113200412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21400231103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4519128 + ... + 4523860.

It is an arithmetic number, because the mean of its divisors is an integer number (1036859616).

Almost surely, 2^21400231102 is an apocalyptic number.

21400231102 is a deficient number, since it is larger than the sum of its proper divisors (11779276610).

21400231102 is a wasteful number, since it uses less digits than its factorization.

21400231102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21400231102 its reverse (20113200412), we get a palindrome (41513431514).

The spelling of 21400231102 in words is "twenty-one billion, four hundred million, two hundred thirty-one thousand, one hundred two".