233121141 has 18 divisors (see below), whose sum is σ = 370127030. Its totient is φ = 141284880.

The previous prime is 233121107. The next prime is 233121151. The reversal of 233121141 is 141121332.

It can be written as a sum of positive squares in only one way, i.e., 232440516 + 680625 = 15246^2 + 825^2 .

It is not a de Polignac number, because 233121141 - 2²² = 228926837 is a prime.

It is a super-2 number, since 2×233121141² = 108690932762283762, which 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 (233121101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 105946 + ... + 108123.

Almost surely, 2^233121141 is an apocalyptic number.

It is an amenable number.

233121141 is a deficient number, since it is larger than the sum of its proper divisors (137005889).

233121141 is a wasteful number, since it uses less digits than its factorization.

233121141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214097 (or 214083 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 233121141 is about 15268.3051122251. The cubic root of 233121141 is about 615.4515739549.

Adding to 233121141 its reverse (141121332), we get a palindrome (374242473).

The spelling of 233121141 in words is "two hundred thirty-three million, one hundred twenty-one thousand, one hundred forty-one".