233120202121 has 4 divisors (see below), whose sum is σ = 234138194500. Its totient is φ = 232102209744.

The previous prime is 233120202109. The next prime is 233120202167. The reversal of 233120202121 is 121202021332.

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 104368409721 + 128751792400 = 323061^2 + 358820^2 .

It is a cyclic number.

It is not a de Polignac number, because 233120202121 - 2²⁷ = 232985984393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233120202191) 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, 508995846 + ... + 508996303.

It is an arithmetic number, because the mean of its divisors is an integer number (58534548625).

Almost surely, 2^233120202121 is an apocalyptic number.

It is an amenable number.

233120202121 is a deficient number, since it is larger than the sum of its proper divisors (1017992379).

233120202121 is a wasteful number, since it uses less digits than its factorization.

233120202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017992378.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 233120202121 its reverse (121202021332), we get a palindrome (354322223453).

The spelling of 233120202121 in words is "two hundred thirty-three billion, one hundred twenty million, two hundred two thousand, one hundred twenty-one".