40323123 has 8 divisors (see below), whose sum is σ = 59738000. Its totient is φ = 26882064.

The previous prime is 40323109. The next prime is 40323169. The reversal of 40323123 is 32132304.

It is not a de Polignac number, because 40323123 - 2⁵ = 40323091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40323096 and 40323105.

It is not an unprimeable number, because it can be changed into a prime (40323193) 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, 746698 + ... + 746751.

It is an arithmetic number, because the mean of its divisors is an integer number (7467250).

Almost surely, 2^40323123 is an apocalyptic number.

40323123 is a deficient number, since it is larger than the sum of its proper divisors (19414877).

40323123 is a wasteful number, since it uses less digits than its factorization.

40323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493458 (or 1493452 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40323123 is about 6350.0490549286. The cubic root of 40323123 is about 342.9136083341.

Adding to 40323123 its reverse (32132304), we get a palindrome (72455427).

The spelling of 40323123 in words is "forty million, three hundred twenty-three thousand, one hundred twenty-three".