233213133121 has 2 divisors, whose sum is σ = 233213133122. Its totient is φ = 233213133120.

The previous prime is 233213133103. The next prime is 233213133193. The reversal of 233213133121 is 121331312332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203436179521 + 29776953600 = 451039^2 + 172560^2 .

It is a cyclic number.

It is not a de Polignac number, because 233213133121 - 2¹⁹ = 233212608833 is a prime.

It is a super-2 number, since 2×233213133121² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (233213137121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116606566560 + 116606566561.

It is an arithmetic number, because the mean of its divisors is an integer number (116606566561).

Almost surely, 2^233213133121 is an apocalyptic number.

It is an amenable number.

233213133121 is a deficient number, since it is larger than the sum of its proper divisors (1).

233213133121 is an equidigital number, since it uses as much as digits as its factorization.

233213133121 is an evil number, because the sum of its binary digits is even.

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

Adding to 233213133121 its reverse (121331312332), we get a palindrome (354544445453).

The spelling of 233213133121 in words is "two hundred thirty-three billion, two hundred thirteen million, one hundred thirty-three thousand, one hundred twenty-one".