10031020203 has 4 divisors (see below), whose sum is σ = 13374693608. Its totient is φ = 6687346800.

The previous prime is 10031020193. The next prime is 10031020211. The reversal of 10031020203 is 30202013001.

It is a happy number.

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

It is not a de Polignac number, because 10031020203 - 2⁵ = 10031020171 is a prime.

It is a super-2 number, since 2×10031020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10031020903) 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, 1671836698 + ... + 1671836703.

It is an arithmetic number, because the mean of its divisors is an integer number (3343673402).

Almost surely, 2^10031020203 is an apocalyptic number.

10031020203 is a deficient number, since it is larger than the sum of its proper divisors (3343673405).

10031020203 is an equidigital number, since it uses as much as digits as its factorization.

10031020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343673404.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 10031020203 its reverse (30202013001), we get a palindrome (40233033204).

The spelling of 10031020203 in words is "ten billion, thirty-one million, twenty thousand, two hundred three".