1240134122431 has 16 divisors (see below), whose sum is σ = 1274931070560. Its totient is φ = 1205805777280.

The previous prime is 1240134122419. The next prime is 1240134122453. The reversal of 1240134122431 is 1342214310421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1240134122431 - 2¹⁷ = 1240133991359 is a prime.

It is a super-2 number, since 2×1240134122431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240134122431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240134120431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2556621 + ... + 3002761.

It is an arithmetic number, because the mean of its divisors is an integer number (79683191910).

Almost surely, 2^{1240134122431} is an apocalyptic number.

1240134122431 is a deficient number, since it is larger than the sum of its proper divisors (34796948129).

1240134122431 is a wasteful number, since it uses less digits than its factorization.

1240134122431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446666.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1240134122431 its reverse (1342214310421), we get a palindrome (2582348432852).

The spelling of 1240134122431 in words is "one trillion, two hundred forty billion, one hundred thirty-four million, one hundred twenty-two thousand, four hundred thirty-one".