240012512431 has 2 divisors, whose sum is σ = 240012512432. Its totient is φ = 240012512430.

The previous prime is 240012512393. The next prime is 240012512459. The reversal of 240012512431 is 134215210042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240012512431 - 2⁷ = 240012512303 is a prime.

It is a super-2 number, since 2×240012512431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240012512396 and 240012512405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240012510431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120006256215 + 120006256216.

It is an arithmetic number, because the mean of its divisors is an integer number (120006256216).

Almost surely, 2^240012512431 is an apocalyptic number.

240012512431 is a deficient number, since it is larger than the sum of its proper divisors (1).

240012512431 is an equidigital number, since it uses as much as digits as its factorization.

240012512431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 240012512431 its reverse (134215210042), we get a palindrome (374227722473).

The spelling of 240012512431 in words is "two hundred forty billion, twelve million, five hundred twelve thousand, four hundred thirty-one".