40423001431 has 4 divisors (see below), whose sum is σ = 40538827000. Its totient is φ = 40307175864.

The previous prime is 40423001413. The next prime is 40423001449. The reversal of 40423001431 is 13410032404.

40423001431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (40423001413) and next prime (40423001449).

It is a cyclic number.

It is not a de Polignac number, because 40423001431 - 2⁷ = 40423001303 is a prime.

It is a super-2 number, since 2×40423001431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40423001131) 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, 57912261 + ... + 57912958.

It is an arithmetic number, because the mean of its divisors is an integer number (10134706750).

Almost surely, 2^40423001431 is an apocalyptic number.

40423001431 is a deficient number, since it is larger than the sum of its proper divisors (115825569).

40423001431 is a wasteful number, since it uses less digits than its factorization.

40423001431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115825568.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40423001431 its reverse (13410032404), we get a palindrome (53833033835).

The spelling of 40423001431 in words is "forty billion, four hundred twenty-three million, one thousand, four hundred thirty-one".