40143540123 has 24 divisors (see below), whose sum is σ = 58093221888. Its totient is φ = 26712524592.

The previous prime is 40143540097. The next prime is 40143540127. The reversal of 40143540123 is 32104534104.

It is a happy number.

It is not a de Polignac number, because 40143540123 - 2¹⁰ = 40143539099 is a prime.

It is a super-2 number, since 2×40143540123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40143540127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18188086 + ... + 18190292.

It is an arithmetic number, because the mean of its divisors is an integer number (2420550912).

Almost surely, 2^40143540123 is an apocalyptic number.

40143540123 is a deficient number, since it is larger than the sum of its proper divisors (17949681765).

40143540123 is a wasteful number, since it uses less digits than its factorization.

40143540123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063 (or 5060 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 40143540123 in words is "forty billion, one hundred forty-three million, five hundred forty thousand, one hundred twenty-three".