40123001131109 has 16 divisors (see below), whose sum is σ = 43276483805184. Its totient is φ = 36979108372800.

The previous prime is 40123001131079. The next prime is 40123001131121. The reversal of 40123001131109 is 90113110032104.

It is a cyclic number.

It is not a de Polignac number, because 40123001131109 - 2²⁸ = 40122732695653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40123001130109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256018844 + ... + 256175514.

It is an arithmetic number, because the mean of its divisors is an integer number (2704780237824).

Almost surely, 2^{40123001131109} is an apocalyptic number.

It is an amenable number.

40123001131109 is a deficient number, since it is larger than the sum of its proper divisors (3153482674075).

40123001131109 is a wasteful number, since it uses less digits than its factorization.

40123001131109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187148.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 40123001131109 in words is "forty trillion, one hundred twenty-three billion, one million, one hundred thirty-one thousand, one hundred nine".