240434211631 has 2 divisors, whose sum is σ = 240434211632. Its totient is φ = 240434211630.

The previous prime is 240434211617. The next prime is 240434211643. The reversal of 240434211631 is 136112434042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240434211631 - 2¹³ = 240434203439 is a prime.

It is a super-2 number, since 2×240434211631² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240434211593 and 240434211602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240434211431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120217105815 + 120217105816.

It is an arithmetic number, because the mean of its divisors is an integer number (120217105816).

Almost surely, 2^240434211631 is an apocalyptic number.

240434211631 is a deficient number, since it is larger than the sum of its proper divisors (1).

240434211631 is an equidigital number, since it uses as much as digits as its factorization.

240434211631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 240434211631 its reverse (136112434042), we get a palindrome (376546645673).

The spelling of 240434211631 in words is "two hundred forty billion, four hundred thirty-four million, two hundred eleven thousand, six hundred thirty-one".