21410400124 has 48 divisors (see below), whose sum is σ = 38288904192. Its totient is φ = 10473743232.

The previous prime is 21410400107. The next prime is 21410400127. The reversal of 21410400124 is 42100401412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410400127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20725912 + ... + 20726944.

It is an arithmetic number, because the mean of its divisors is an integer number (797685504).

Almost surely, 2^21410400124 is an apocalyptic number.

It is an amenable number.

21410400124 is a deficient number, since it is larger than the sum of its proper divisors (16878504068).

21410400124 is a wasteful number, since it uses less digits than its factorization.

21410400124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1664 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21410400124 its reverse (42100401412), we get a palindrome (63510801536).

The spelling of 21410400124 in words is "twenty-one billion, four hundred ten million, four hundred thousand, one hundred twenty-four".