10402013421 has 12 divisors (see below), whose sum is σ = 15053866048. Its totient is φ = 6921413064.

The previous prime is 10402013417. The next prime is 10402013437. The reversal of 10402013421 is 12431020401.

10402013421 is a `hidden beast` number, since 1 + 0 + 40 + 201 + 3 + 421 = 666.

It is not a de Polignac number, because 10402013421 - 2² = 10402013417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10402013394 and 10402013403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402013411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1100245 + ... + 1109658.

Almost surely, 2^10402013421 is an apocalyptic number.

It is an amenable number.

10402013421 is a deficient number, since it is larger than the sum of its proper divisors (4651852627).

10402013421 is a wasteful number, since it uses less digits than its factorization.

10402013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210432 (or 2210429 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10402013421 its reverse (12431020401), we get a palindrome (22833033822).

The spelling of 10402013421 in words is "ten billion, four hundred two million, thirteen thousand, four hundred twenty-one".