200020020031 has 4 divisors (see below), whose sum is σ = 215406175432. Its totient is φ = 184633864632.

The previous prime is 200020020023. The next prime is 200020020077. The reversal of 200020020031 is 130020020002.

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 200020020031 - 2³ = 200020020023 is a prime.

It is a super-2 number, since 2×200020020031² (a number of 23 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 (200020020631) 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, 7693077681 + ... + 7693077706.

It is an arithmetic number, because the mean of its divisors is an integer number (53851543858).

Almost surely, 2^200020020031 is an apocalyptic number.

200020020031 is a deficient number, since it is larger than the sum of its proper divisors (15386155401).

200020020031 is a wasteful number, since it uses less digits than its factorization.

200020020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15386155400.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 200020020031 its reverse (130020020002), we get a palindrome (330040040033).

The spelling of 200020020031 in words is "two hundred billion, twenty million, twenty thousand, thirty-one".