40105432023 has 4 divisors (see below), whose sum is σ = 53473909368. Its totient is φ = 26736954680.

The previous prime is 40105431991. The next prime is 40105432043. The reversal of 40105432023 is 32023450104.

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 40105432023 - 2⁵ = 40105431991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40105431984 and 40105432002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40105432043) 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, 6684238668 + ... + 6684238673.

It is an arithmetic number, because the mean of its divisors is an integer number (13368477342).

Almost surely, 2^40105432023 is an apocalyptic number.

40105432023 is a deficient number, since it is larger than the sum of its proper divisors (13368477345).

40105432023 is a wasteful number, since it uses less digits than its factorization.

40105432023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368477344.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 40105432023 its reverse (32023450104), we get a palindrome (72128882127).

The spelling of 40105432023 in words is "forty billion, one hundred five million, four hundred thirty-two thousand, twenty-three".