21412435100 has 72 divisors (see below), whose sum is σ = 53125745568. Its totient is φ = 7338240000.

The previous prime is 21412435091. The next prime is 21412435133. The reversal of 21412435100 is 153421412.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2095604 + ... + 2105796.

Almost surely, 2^21412435100 is an apocalyptic number.

21412435100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21412435100 is an abundant number, since it is smaller than the sum of its proper divisors (31713310468).

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

21412435100 is a wasteful number, since it uses less digits than its factorization.

21412435100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13215 (or 13208 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 21412435100 its reverse (153421412), we get a palindrome (21565856512).

The spelling of 21412435100 in words is "twenty-one billion, four hundred twelve million, four hundred thirty-five thousand, one hundred".