10020031031 has 4 divisors (see below), whose sum is σ = 10020465000. Its totient is φ = 10019597064.

The previous prime is 10020031009. The next prime is 10020031037. The reversal of 10020031031 is 13013002001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13013002001 = 47 ⋅276872383.

It is a cyclic number.

It is not a de Polignac number, because 10020031031 - 2²⁶ = 9952922167 is a prime.

It is a super-2 number, since 2×10020031031² (a number of 21 digits) 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 (10020031037) 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, 180281 + ... + 229218.

It is an arithmetic number, because the mean of its divisors is an integer number (2505116250).

Almost surely, 2^10020031031 is an apocalyptic number.

10020031031 is a deficient number, since it is larger than the sum of its proper divisors (433969).

10020031031 is an equidigital number, since it uses as much as digits as its factorization.

10020031031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433968.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10020031031 its reverse (13013002001), we get a palindrome (23033033032).

The spelling of 10020031031 in words is "ten billion, twenty million, thirty-one thousand, thirty-one".