232121001 has 16 divisors (see below), whose sum is σ = 353922048. Its totient is φ = 132560400.

The previous prime is 232120957. The next prime is 232121011. The reversal of 232121001 is 100121232.

It is not a de Polignac number, because 232121001 - 2⁶ = 232120937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61396 + ... + 65066.

It is an arithmetic number, because the mean of its divisors is an integer number (22120128).

Almost surely, 2^232121001 is an apocalyptic number.

232121001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

232121001 is a deficient number, since it is larger than the sum of its proper divisors (121801047).

232121001 is a wasteful number, since it uses less digits than its factorization.

232121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6692.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 232121001 is about 15235.5177463715. The cubic root of 232121001 is about 614.5701722627.

Adding to 232121001 its reverse (100121232), we get a palindrome (332242233).

The spelling of 232121001 in words is "two hundred thirty-two million, one hundred twenty-one thousand, one".