40240311331023 has 32 divisors (see below), whose sum is σ = 63122900313600. Its totient is φ = 25248485467008.

The previous prime is 40240311331009. The next prime is 40240311331043. The reversal of 40240311331023 is 32013311304204.

It is a happy number.

40240311331023 is a `hidden beast` number, since 4 + 0 + 240 + 311 + 3 + 3 + 102 + 3 = 666.

It is not a de Polignac number, because 40240311331023 - 2⁹ = 40240311330511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240311331043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36341158 + ... + 37432076.

It is an arithmetic number, because the mean of its divisors is an integer number (1972590634800).

Almost surely, 2^{40240311331023} is an apocalyptic number.

40240311331023 is a deficient number, since it is larger than the sum of its proper divisors (22882588982577).

40240311331023 is a wasteful number, since it uses less digits than its factorization.

40240311331023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171308 (or 1171302 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 40240311331023 its reverse (32013311304204), we get a palindrome (72253622635227).

The spelling of 40240311331023 in words is "forty trillion, two hundred forty billion, three hundred eleven million, three hundred thirty-one thousand, twenty-three".