200113512031 has 4 divisors (see below), whose sum is σ = 200151210600. Its totient is φ = 200075813464.

The previous prime is 200113512013. The next prime is 200113512083. The reversal of 200113512031 is 130215311002.

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 200113512031 - 2²¹ = 200111414879 is a prime.

It is a super-2 number, since 2×200113512031² (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 (200113519031) 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, 18841321 + ... + 18851938.

It is an arithmetic number, because the mean of its divisors is an integer number (50037802650).

Almost surely, 2^200113512031 is an apocalyptic number.

200113512031 is a deficient number, since it is larger than the sum of its proper divisors (37698569).

200113512031 is an equidigital number, since it uses as much as digits as its factorization.

200113512031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37698568.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 200113512031 its reverse (130215311002), we get a palindrome (330328823033).

The spelling of 200113512031 in words is "two hundred billion, one hundred thirteen million, five hundred twelve thousand, thirty-one".