232161121 has 4 divisors (see below), whose sum is σ = 232217392. Its totient is φ = 232104852.

The previous prime is 232161119. The next prime is 232161169. The reversal of 232161121 is 121161232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232161121 - 2¹ = 232161119 is a prime.

It is a super-2 number, since 2×232161121² = 107797572207953282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232161101) 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, 21411 + ... + 30376.

It is an arithmetic number, because the mean of its divisors is an integer number (58054348).

Almost surely, 2^232161121 is an apocalyptic number.

It is an amenable number.

232161121 is a deficient number, since it is larger than the sum of its proper divisors (56271).

232161121 is an equidigital number, since it uses as much as digits as its factorization.

232161121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56270.

The product of its digits is 144, while the sum is 19.

The square root of 232161121 is about 15236.8343496935. The cubic root of 232161121 is about 614.6055778411.

The spelling of 232161121 in words is "two hundred thirty-two million, one hundred sixty-one thousand, one hundred twenty-one".