40143342123 has 32 divisors (see below), whose sum is σ = 62121415680. Its totient is φ = 25572222720.

The previous prime is 40143342119. The next prime is 40143342143. The reversal of 40143342123 is 32124334104.

40143342123 is a `hidden beast` number, since 401 + 43 + 3 + 4 + 212 + 3 = 666.

40143342123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40143342123 - 2² = 40143342119 is a prime.

It is a super-2 number, since 2×40143342123² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (40143342143) 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, 577563 + ... + 643323.

It is an arithmetic number, because the mean of its divisors is an integer number (1941294240).

Almost surely, 2^40143342123 is an apocalyptic number.

40143342123 is a deficient number, since it is larger than the sum of its proper divisors (21978073557).

40143342123 is a wasteful number, since it uses less digits than its factorization.

40143342123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66776 (or 66770 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40143342123 its reverse (32124334104), we get a palindrome (72267676227).

It can be divided in two parts, 401433 and 42123, that added together give a square (443556 = 666²).

The spelling of 40143342123 in words is "forty billion, one hundred forty-three million, three hundred forty-two thousand, one hundred twenty-three".