240126521313 has 48 divisors (see below), whose sum is σ = 391272786944. Its totient is φ = 128287929600.

The previous prime is 240126521267. The next prime is 240126521321. The reversal of 240126521313 is 313125621042.

It is not a de Polignac number, because 240126521313 - 2¹⁸ = 240126259169 is a prime.

It is a super-3 number, since 3×240126521313³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240126521363) 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, 785406 + ... + 1047432.

Almost surely, 2^240126521313 is an apocalyptic number.

It is an amenable number.

240126521313 is a deficient number, since it is larger than the sum of its proper divisors (151146265631).

240126521313 is a wasteful number, since it uses less digits than its factorization.

240126521313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262222 (or 262205 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 240126521313 in words is "two hundred forty billion, one hundred twenty-six million, five hundred twenty-one thousand, three hundred thirteen".