233131123213 has 8 divisors (see below), whose sum is σ = 233490820640. Its totient is φ = 232771546800.

The previous prime is 233131123187. The next prime is 233131123229. The reversal of 233131123213 is 312321131332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 233131123213 - 2²¹ = 233129026061 is a prime.

It is a super-2 number, since 2×233131123213² (a number of 24 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 (233131103213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4296931 + ... + 4350847.

It is an arithmetic number, because the mean of its divisors is an integer number (29186352580).

Almost surely, 2^233131123213 is an apocalyptic number.

It is an amenable number.

233131123213 is a deficient number, since it is larger than the sum of its proper divisors (359697427).

233131123213 is an equidigital number, since it uses as much as digits as its factorization.

233131123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60507.

The product of its digits is 1944, while the sum is 25.

Adding to 233131123213 its reverse (312321131332), we get a palindrome (545452254545).

The spelling of 233131123213 in words is "two hundred thirty-three billion, one hundred thirty-one million, one hundred twenty-three thousand, two hundred thirteen".