10040403021 has 16 divisors (see below), whose sum is σ = 14611517760. Its totient is φ = 6082053120.

The previous prime is 10040402971. The next prime is 10040403029. The reversal of 10040403021 is 12030404001.

It is not a de Polignac number, because 10040403021 - 2⁷ = 10040402893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10040403029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8020 + ... + 141933.

It is an arithmetic number, because the mean of its divisors is an integer number (913219860).

Almost surely, 2^10040403021 is an apocalyptic number.

10040403021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10040403021 is a deficient number, since it is larger than the sum of its proper divisors (4571114739).

10040403021 is a wasteful number, since it uses less digits than its factorization.

10040403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151996.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10040403021 its reverse (12030404001), we get a palindrome (22070807022).

The spelling of 10040403021 in words is "ten billion, forty million, four hundred three thousand, twenty-one".