240140432031 has 4 divisors (see below), whose sum is σ = 320187242712. Its totient is φ = 160093621352.

The previous prime is 240140431969. The next prime is 240140432083. The reversal of 240140432031 is 130234041042.

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 240140432031 - 2⁹ = 240140431519 is a prime.

It is a super-2 number, since 2×240140432031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240140431992 and 240140432010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240140432131) 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, 40023405336 + ... + 40023405341.

It is an arithmetic number, because the mean of its divisors is an integer number (80046810678).

Almost surely, 2^240140432031 is an apocalyptic number.

240140432031 is a deficient number, since it is larger than the sum of its proper divisors (80046810681).

240140432031 is an equidigital number, since it uses as much as digits as its factorization.

240140432031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80046810680.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 240140432031 its reverse (130234041042), we get a palindrome (370374473073).

The spelling of 240140432031 in words is "two hundred forty billion, one hundred forty million, four hundred thirty-two thousand, thirty-one".