40230021452431 has 24 divisors (see below), whose sum is σ = 44595875598624. Its totient is φ = 36215599326720.

The previous prime is 40230021452419. The next prime is 40230021452459. The reversal of 40230021452431 is 13425412003204.

It is not a de Polignac number, because 40230021452431 - 2³⁵ = 40195661714063 is a prime.

It is a super-2 number, since 2×40230021452431² (a number of 28 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 = 40230021452393 and 40230021452402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230021459431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153102021 + ... + 153364561.

It is an arithmetic number, because the mean of its divisors is an integer number (1858161483276).

Almost surely, 2^{40230021452431} is an apocalyptic number.

40230021452431 is a deficient number, since it is larger than the sum of its proper divisors (4365854146193).

40230021452431 is a wasteful number, since it uses less digits than its factorization.

40230021452431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285651 (or 285634 counting only the distinct ones).

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

Adding to 40230021452431 its reverse (13425412003204), we get a palindrome (53655433455635).

The spelling of 40230021452431 in words is "forty trillion, two hundred thirty billion, twenty-one million, four hundred fifty-two thousand, four hundred thirty-one".