10031021 has 24 divisors (see below), whose sum is σ = 13585152. Its totient is φ = 7207200.

The previous prime is 10030991. The next prime is 10031027. The reversal of 10031021 is 12013001.

It is not a de Polignac number, because 10031021 - 2⁶ = 10030957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031027) 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 23 ways as a sum of consecutive naturals, for example, 10556 + ... + 11466.

It is an arithmetic number, because the mean of its divisors is an integer number (566048).

Almost surely, 2^10031021 is an apocalyptic number.

10031021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10031021 is a deficient number, since it is larger than the sum of its proper divisors (3554131).

10031021 is a wasteful number, since it uses less digits than its factorization.

10031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 10031021 is about 3167.1787129873. The cubic root of 10031021 is about 215.6660147702. Note that the first 3 decimals are identical.

Adding to 10031021 its reverse (12013001), we get a palindrome (22044022).

The spelling of 10031021 in words is "ten million, thirty-one thousand, twenty-one".