200312111031 has 16 divisors (see below), whose sum is σ = 278375086080. Its totient is φ = 127978918560.

The previous prime is 200312111011. The next prime is 200312111057. The reversal of 200312111031 is 130111213002.

It is a happy number.

It is not a de Polignac number, because 200312111031 - 2¹⁸ = 200311848887 is a prime.

It is a super-2 number, since 2×200312111031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200312111031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200312111011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10446216 + ... + 10465373.

It is an arithmetic number, because the mean of its divisors is an integer number (17398442880).

Almost surely, 2^200312111031 is an apocalyptic number.

200312111031 is a deficient number, since it is larger than the sum of its proper divisors (78062975049).

200312111031 is a wasteful number, since it uses less digits than its factorization.

200312111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20911726.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 200312111031 its reverse (130111213002), we get a palindrome (330423324033).

The spelling of 200312111031 in words is "two hundred billion, three hundred twelve million, one hundred eleven thousand, thirty-one".