10421510100 has 72 divisors (see below), whose sum is σ = 30854171040. Its totient is φ = 2714436480.

The previous prime is 10421510087. The next prime is 10421510107. The reversal of 10421510100 is 101512401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10421510100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421510107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391035 + ... + 416834.

Almost surely, 2^10421510100 is an apocalyptic number.

10421510100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10421510100 is an abundant number, since it is smaller than the sum of its proper divisors (20432660940).

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

10421510100 is a wasteful number, since it uses less digits than its factorization.

10421510100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807929 (or 807922 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The spelling of 10421510100 in words is "ten billion, four hundred twenty-one million, five hundred ten thousand, one hundred".