2240042023431 has 6 divisors (see below), whose sum is σ = 3235616256080. Its totient is φ = 1493361348948.

The previous prime is 2240042023369. The next prime is 2240042023451. The reversal of 2240042023431 is 1343202400422.

2240042023431 is a `hidden beast` number, since 2 + 2 + 4 + 0 + 0 + 420 + 234 + 3 + 1 = 666.

It is not a de Polignac number, because 2240042023431 - 2¹¹ = 2240042021383 is a prime.

It is a super-2 number, since 2×2240042023431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2240042023395 and 2240042023404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240042023451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124446779071 + ... + 124446779088.

Almost surely, 2^{2240042023431} is an apocalyptic number.

2240042023431 is a deficient number, since it is larger than the sum of its proper divisors (995574232649).

2240042023431 is a wasteful number, since it uses less digits than its factorization.

2240042023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248893558165 (or 248893558162 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 2240042023431 its reverse (1343202400422), we get a palindrome (3583244423853).

The spelling of 2240042023431 in words is "two trillion, two hundred forty billion, forty-two million, twenty-three thousand, four hundred thirty-one".