21400104110 has 64 divisors (see below), whose sum is σ = 48520442880. Its totient is φ = 6601374720.

The previous prime is 21400104079. The next prime is 21400104127. The reversal of 21400104110 is 1140100412.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68570 + ... + 217949.

It is an arithmetic number, because the mean of its divisors is an integer number (758131920).

Almost surely, 2^21400104110 is an apocalyptic number.

21400104110 is an abundant number, since it is smaller than the sum of its proper divisors (27120338770).

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

21400104110 is a wasteful number, since it uses less digits than its factorization.

21400104110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286641.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21400104110 its reverse (1140100412), we get a palindrome (22540204522).

The spelling of 21400104110 in words is "twenty-one billion, four hundred million, one hundred four thousand, one hundred ten".