231200313331 has 16 divisors (see below), whose sum is σ = 253329216448. Its totient is φ = 209699280000.

The previous prime is 231200313287. The next prime is 231200313389. The reversal of 231200313331 is 133313002132.

It is a cyclic number.

It is not a de Polignac number, because 231200313331 - 2³¹ = 229052829683 is a prime.

It is a super-2 number, since 2×231200313331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231200313391) 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, 616081 + ... + 917581.

It is an arithmetic number, because the mean of its divisors is an integer number (15833076028).

Almost surely, 2^231200313331 is an apocalyptic number.

231200313331 is a deficient number, since it is larger than the sum of its proper divisors (22128903117).

231200313331 is a wasteful number, since it uses less digits than its factorization.

231200313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302542.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231200313331 its reverse (133313002132), we get a palindrome (364513315463).

The spelling of 231200313331 in words is "two hundred thirty-one billion, two hundred million, three hundred thirteen thousand, three hundred thirty-one".