233222031131 has 4 divisors (see below), whose sum is σ = 233296379832. Its totient is φ = 233147682432.

The previous prime is 233222031127. The next prime is 233222031151. The reversal of 233222031131 is 131130222332.

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 233222031131 - 2² = 233222031127 is a prime.

It is a super-2 number, since 2×233222031131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233222031097 and 233222031106.

It is not an unprimeable number, because it can be changed into a prime (233222031151) 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, 37169645 + ... + 37175918.

It is an arithmetic number, because the mean of its divisors is an integer number (58324094958).

Almost surely, 2^233222031131 is an apocalyptic number.

233222031131 is a deficient number, since it is larger than the sum of its proper divisors (74348701).

233222031131 is an equidigital number, since it uses as much as digits as its factorization.

233222031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74348700.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 233222031131 its reverse (131130222332), we get a palindrome (364352253463).

The spelling of 233222031131 in words is "two hundred thirty-three billion, two hundred twenty-two million, thirty-one thousand, one hundred thirty-one".