40515323023 has 6 divisors (see below), whose sum is σ = 47130069696. Its totient is φ = 34727419692.

The previous prime is 40515322997. The next prime is 40515323033. The reversal of 40515323023 is 32032351504.

It is not a de Polignac number, because 40515323023 - 2⁹ = 40515322511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40515322982 and 40515323000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40515323033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 413421615 + ... + 413421712.

It is an arithmetic number, because the mean of its divisors is an integer number (7855011616).

Almost surely, 2^40515323023 is an apocalyptic number.

40515323023 is a deficient number, since it is larger than the sum of its proper divisors (6614746673).

40515323023 is an equidigital number, since it uses as much as digits as its factorization.

40515323023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826843341 (or 826843334 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 40515323023 its reverse (32032351504), we get a palindrome (72547674527).

The spelling of 40515323023 in words is "forty billion, five hundred fifteen million, three hundred twenty-three thousand, twenty-three".