240042604531 has 2 divisors, whose sum is σ = 240042604532. Its totient is φ = 240042604530.

The previous prime is 240042604447. The next prime is 240042604577. The reversal of 240042604531 is 135406240042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240042604531 - 2¹¹ = 240042602483 is a prime.

It is a super-2 number, since 2×240042604531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240042604493 and 240042604502.

It is not a weakly prime, because it can be changed into another prime (240042604331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120021302265 + 120021302266.

It is an arithmetic number, because the mean of its divisors is an integer number (120021302266).

Almost surely, 2^240042604531 is an apocalyptic number.

240042604531 is a deficient number, since it is larger than the sum of its proper divisors (1).

240042604531 is an equidigital number, since it uses as much as digits as its factorization.

240042604531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 240042604531 its reverse (135406240042), we get a palindrome (375448844573).

The spelling of 240042604531 in words is "two hundred forty billion, forty-two million, six hundred four thousand, five hundred thirty-one".