10031021001 has 12 divisors (see below), whose sum is σ = 14495718640. Its totient is φ = 6684363000.

The previous prime is 10031020963. The next prime is 10031021023. The reversal of 10031021001 is 10012013001.

It is not a de Polignac number, because 10031021001 - 2¹¹ = 10031018953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10031021051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227311 + ... + 267828.

Almost surely, 2^10031021001 is an apocalyptic number.

It is an amenable number.

10031021001 is a deficient number, since it is larger than the sum of its proper divisors (4464697639).

10031021001 is a wasteful number, since it uses less digits than its factorization.

10031021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497396 (or 497393 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 10031021001 its reverse (10012013001), we get a palindrome (20043034002).

The spelling of 10031021001 in words is "ten billion, thirty-one million, twenty-one thousand, one".