240552235131021 has 48 divisors (see below), whose sum is σ = 380510959720320. Its totient is φ = 145228149279360.

The previous prime is 240552235131001. The next prime is 240552235131071. The reversal of 240552235131021 is 120131532255042.

240552235131021 is a `hidden beast` number, since 2 + 4 + 0 + 55 + 223 + 51 + 310 + 21 = 666.

It is not a de Polignac number, because 240552235131021 - 2¹¹ = 240552235128973 is a prime.

It is a super-3 number, since 3×240552235131021³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240552235131001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 591070815 + ... + 591477651.

It is an arithmetic number, because the mean of its divisors is an integer number (7927311660840).

Almost surely, 2^{240552235131021} is an apocalyptic number.

It is an amenable number.

240552235131021 is a deficient number, since it is larger than the sum of its proper divisors (139958724589299).

240552235131021 is a wasteful number, since it uses less digits than its factorization.

240552235131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429826 (or 429823 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 240552235131021 its reverse (120131532255042), we get a palindrome (360683767386063).

The spelling of 240552235131021 in words is "two hundred forty trillion, five hundred fifty-two billion, two hundred thirty-five million, one hundred thirty-one thousand, twenty-one".