40122004403431 has 4 divisors (see below), whose sum is σ = 40123052041000. Its totient is φ = 40120956765864.

The previous prime is 40122004403389. The next prime is 40122004403443. The reversal of 40122004403431 is 13430440022104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40122004403431 - 2²³ = 40121996014823 is a prime.

It is a super-2 number, since 2×40122004403431² (a number of 28 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 40122004403431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40122004400431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523761336 + ... + 523837933.

It is an arithmetic number, because the mean of its divisors is an integer number (10030763010250).

Almost surely, 2^{40122004403431} is an apocalyptic number.

40122004403431 is a deficient number, since it is larger than the sum of its proper divisors (1047637569).

40122004403431 is a wasteful number, since it uses less digits than its factorization.

40122004403431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047637568.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40122004403431 its reverse (13430440022104), we get a palindrome (53552444425535).

The spelling of 40122004403431 in words is "forty trillion, one hundred twenty-two billion, four million, four hundred three thousand, four hundred thirty-one".