10040031021 has 8 divisors (see below), whose sum is σ = 13483015840. Its totient is φ = 6645200112.

The previous prime is 10040031011. The next prime is 10040031031. The reversal of 10040031021 is 12013004001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10040031011) and next prime (10040031031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10040031021 - 2¹⁵ = 10039998253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10040030988 and 10040031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10040031011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12037990 + ... + 12038823.

It is an arithmetic number, because the mean of its divisors is an integer number (1685376980).

Almost surely, 2^10040031021 is an apocalyptic number.

It is an amenable number.

10040031021 is a deficient number, since it is larger than the sum of its proper divisors (3442984819).

10040031021 is a wasteful number, since it uses less digits than its factorization.

10040031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24076955.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10040031021 its reverse (12013004001), we get a palindrome (22053035022).

The spelling of 10040031021 in words is "ten billion, forty million, thirty-one thousand, twenty-one".