200023431 has 32 divisors (see below), whose sum is σ = 290269440. Its totient is φ = 122114304.

The previous prime is 200023423. The next prime is 200023451. The reversal of 200023431 is 134320002.

It is not a de Polignac number, because 200023431 - 2³ = 200023423 is a prime.

It is a super-2 number, since 2×200023431² = 80018745898023522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200023431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200023451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220080 + ... + 220986.

It is an arithmetic number, because the mean of its divisors is an integer number (9070920).

Almost surely, 2^200023431 is an apocalyptic number.

200023431 is a deficient number, since it is larger than the sum of its proper divisors (90246009).

200023431 is a wasteful number, since it uses less digits than its factorization.

200023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 200023431 is about 14142.9640104187. The cubic root of 200023431 is about 584.8263843040.

Adding to 200023431 its reverse (134320002), we get a palindrome (334343433).

The spelling of 200023431 in words is "two hundred million, twenty-three thousand, four hundred thirty-one".