10120031 has 4 divisors (see below), whose sum is σ = 10137000. Its totient is φ = 10103064.

The previous prime is 10120021. The next prime is 10120039. The reversal of 10120031 is 13002101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10120031 - 2²² = 5925727 is a prime.

It is a super-2 number, since 2×10120031² = 204830054881922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7556 + ... + 8793.

It is an arithmetic number, because the mean of its divisors is an integer number (2534250).

Almost surely, 2^10120031 is an apocalyptic number.

10120031 is a deficient number, since it is larger than the sum of its proper divisors (16969).

10120031 is an equidigital number, since it uses as much as digits as its factorization.

10120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16968.

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

The square root of 10120031 is about 3181.1996164969. The cubic root of 10120031 is about 216.3020394434.

Adding to 10120031 its reverse (13002101), we get a palindrome (23122132).

The spelling of 10120031 in words is "ten million, one hundred twenty thousand, thirty-one".