233130132121 has 4 divisors (see below), whose sum is σ = 233132760244. Its totient is φ = 233127504000.

The previous prime is 233130132113. The next prime is 233130132139. The reversal of 233130132121 is 121231031332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37048550400 + 196081581721 = 192480^2 + 442811^2 .

It is a cyclic number.

It is not a de Polignac number, because 233130132121 - 2³ = 233130132113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233130132092 and 233130132101.

It is not an unprimeable number, because it can be changed into a prime (233130132161) 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, 1176180 + ... + 1360021.

It is an arithmetic number, because the mean of its divisors is an integer number (58283190061).

Almost surely, 2^233130132121 is an apocalyptic number.

It is an amenable number.

233130132121 is a deficient number, since it is larger than the sum of its proper divisors (2628123).

233130132121 is an equidigital number, since it uses as much as digits as its factorization.

233130132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628122.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 233130132121 its reverse (121231031332), we get a palindrome (354361163453).

The spelling of 233130132121 in words is "two hundred thirty-three billion, one hundred thirty million, one hundred thirty-two thousand, one hundred twenty-one".