10031018 has 4 divisors (see below), whose sum is σ = 15046530. Its totient is φ = 5015508.

The previous prime is 10030991. The next prime is 10031027. The reversal of 10031018 is 81013001.

10031018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 8254129 + 1776889 = 2873^2 + 1333^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10030993 and 10031011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507753 + ... + 2507756.

Almost surely, 2^10031018 is an apocalyptic number.

10031018 is a deficient number, since it is larger than the sum of its proper divisors (5015512).

10031018 is an equidigital number, since it uses as much as digits as its factorization.

10031018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015511.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 10031018 is about 3167.1782393797. The cubic root of 10031018 is about 215.6659932703.

Adding to 10031018 its reverse (81013001), we get a palindrome (91044019).

The spelling of 10031018 in words is "ten million, thirty-one thousand, eighteen".