233121001001 has 24 divisors (see below), whose sum is σ = 272876711040. Its totient is φ = 198570046752.

The previous prime is 233121000977. The next prime is 233121001027. The reversal of 233121001001 is 100100121332.

It is not a de Polignac number, because 233121001001 - 2¹⁴ = 233120984617 is a prime.

It is a super-2 number, since 2×233121001001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233121001801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22942160 + ... + 22952318.

It is an arithmetic number, because the mean of its divisors is an integer number (11369862960).

Almost surely, 2^233121001001 is an apocalyptic number.

It is an amenable number.

233121001001 is a deficient number, since it is larger than the sum of its proper divisors (39755710039).

233121001001 is a wasteful number, since it uses less digits than its factorization.

233121001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13053 (or 13046 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 233121001001 its reverse (100100121332), we get a palindrome (333221122333).

The spelling of 233121001001 in words is "two hundred thirty-three billion, one hundred twenty-one million, one thousand, one".