20200210031 has 4 divisors (see below), whose sum is σ = 21263379000. Its totient is φ = 19137041064.

The previous prime is 20200210001. The next prime is 20200210039. The reversal of 20200210031 is 13001200202.

It is a happy number.

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 20200210031 - 2²² = 20196015727 is a prime.

It is a super-2 number, since 2×20200210031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200209994 and 20200210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200210039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531584456 + ... + 531584493.

It is an arithmetic number, because the mean of its divisors is an integer number (5315844750).

Almost surely, 2^20200210031 is an apocalyptic number.

20200210031 is a deficient number, since it is larger than the sum of its proper divisors (1063168969).

20200210031 is a wasteful number, since it uses less digits than its factorization.

20200210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063168968.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20200210031 its reverse (13001200202), we get a palindrome (33201410233).

The spelling of 20200210031 in words is "twenty billion, two hundred million, two hundred ten thousand, thirty-one".