233250213531 has 4 divisors (see below), whose sum is σ = 311000284712. Its totient is φ = 155500142352.

The previous prime is 233250213479. The next prime is 233250213541. The reversal of 233250213531 is 135312052332.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 233250213531 - 2¹⁵ = 233250180763 is a prime.

It is a super-2 number, since 2×233250213531² (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 (233250213541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38875035586 + ... + 38875035591.

It is an arithmetic number, because the mean of its divisors is an integer number (77750071178).

Almost surely, 2^233250213531 is an apocalyptic number.

233250213531 is a deficient number, since it is larger than the sum of its proper divisors (77750071181).

233250213531 is an equidigital number, since it uses as much as digits as its factorization.

233250213531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77750071180.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 233250213531 its reverse (135312052332), we get a palindrome (368562265863).

The spelling of 233250213531 in words is "two hundred thirty-three billion, two hundred fifty million, two hundred thirteen thousand, five hundred thirty-one".