233251153021 has 4 divisors (see below), whose sum is σ = 234459708412. Its totient is φ = 232042597632.

The previous prime is 233251152961. The next prime is 233251153127. The reversal of 233251153021 is 120351152332.

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 45458930521 + 187792222500 = 213211^2 + 433350^2 .

It is a cyclic number.

It is not a de Polignac number, because 233251153021 - 2¹⁵ = 233251120253 is a prime.

It is a super-2 number, since 2×233251153021² (a number of 24 digits) 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 (233251153721) 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, 604277406 + ... + 604277791.

It is an arithmetic number, because the mean of its divisors is an integer number (58614927103).

Almost surely, 2^233251153021 is an apocalyptic number.

It is an amenable number.

233251153021 is a deficient number, since it is larger than the sum of its proper divisors (1208555391).

233251153021 is a wasteful number, since it uses less digits than its factorization.

233251153021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208555390.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 233251153021 in words is "two hundred thirty-three billion, two hundred fifty-one million, one hundred fifty-three thousand, twenty-one".