233131230231 has 64 divisors (see below), whose sum is σ = 347162534400. Its totient is φ = 138534230016.

The previous prime is 233131230191. The next prime is 233131230251. The reversal of 233131230231 is 132032131332.

It is not a de Polignac number, because 233131230231 - 2¹⁵ = 233131197463 is a prime.

It is a super-2 number, since 2×233131230231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233131230251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32479515 + ... + 32486691.

It is an arithmetic number, because the mean of its divisors is an integer number (5424414600).

Almost surely, 2^233131230231 is an apocalyptic number.

233131230231 is a deficient number, since it is larger than the sum of its proper divisors (114031304169).

233131230231 is a wasteful number, since it uses less digits than its factorization.

233131230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 233131230231 its reverse (132032131332), we get a palindrome (365163361563).

The spelling of 233131230231 in words is "two hundred thirty-three billion, one hundred thirty-one million, two hundred thirty thousand, two hundred thirty-one".