40131774602123 has 4 divisors (see below), whose sum is σ = 40143088892280. Its totient is φ = 40120460311968.

The previous prime is 40131774602099. The next prime is 40131774602137. The reversal of 40131774602123 is 32120647713104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40131774602123 is a prime.

It is a super-2 number, since 2×40131774602123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40131774604123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5657139758 + ... + 5657146851.

It is an arithmetic number, because the mean of its divisors is an integer number (10035772223070).

Almost surely, 2^{40131774602123} is an apocalyptic number.

40131774602123 is a deficient number, since it is larger than the sum of its proper divisors (11314290157).

40131774602123 is a wasteful number, since it uses less digits than its factorization.

40131774602123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11314290156.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 40131774602123 in words is "forty trillion, one hundred thirty-one billion, seven hundred seventy-four million, six hundred two thousand, one hundred twenty-three".