10402021511 has 32 divisors (see below), whose sum is σ = 12583600128. Its totient is φ = 8409834720.

The previous prime is 10402021507. The next prime is 10402021517. The reversal of 10402021511 is 11512020401.

It is not a de Polignac number, because 10402021511 - 2² = 10402021507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10402021511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402021517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6036296 + ... + 6038018.

It is an arithmetic number, because the mean of its divisors is an integer number (393237504).

Almost surely, 2^10402021511 is an apocalyptic number.

10402021511 is a deficient number, since it is larger than the sum of its proper divisors (2181578617).

10402021511 is a wasteful number, since it uses less digits than its factorization.

10402021511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 10402021511 its reverse (11512020401), we get a palindrome (21914041912).

The spelling of 10402021511 in words is "ten billion, four hundred two million, twenty-one thousand, five hundred eleven".