40123243023 has 8 divisors (see below), whose sum is σ = 53988462000. Its totient is φ = 26503426368.

The previous prime is 40123242997. The next prime is 40123243033. The reversal of 40123243023 is 32034232104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40123243023 - 2¹³ = 40123234831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40123242984 and 40123243002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40123243033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61350198 + ... + 61350851.

It is an arithmetic number, because the mean of its divisors is an integer number (6748557750).

Almost surely, 2^40123243023 is an apocalyptic number.

40123243023 is a deficient number, since it is larger than the sum of its proper divisors (13865218977).

40123243023 is a wasteful number, since it uses less digits than its factorization.

40123243023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122701161.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 40123243023 its reverse (32034232104), we get a palindrome (72157475127).

The spelling of 40123243023 in words is "forty billion, one hundred twenty-three million, two hundred forty-three thousand, twenty-three".