240564132431 has 4 divisors (see below), whose sum is σ = 274930437072. Its totient is φ = 206197827792.

The previous prime is 240564132427. The next prime is 240564132463. The reversal of 240564132431 is 134231465042.

240564132431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240564132431 - 2² = 240564132427 is a prime.

It is a super-2 number, since 2×240564132431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240564132391 and 240564132400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240564132421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17183152310 + ... + 17183152323.

It is an arithmetic number, because the mean of its divisors is an integer number (68732609268).

Almost surely, 2^240564132431 is an apocalyptic number.

240564132431 is a deficient number, since it is larger than the sum of its proper divisors (34366304641).

240564132431 is an equidigital number, since it uses as much as digits as its factorization.

240564132431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34366304640.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 240564132431 its reverse (134231465042), we get a palindrome (374795597473).

The spelling of 240564132431 in words is "two hundred forty billion, five hundred sixty-four million, one hundred thirty-two thousand, four hundred thirty-one".