40121931113 has 16 divisors (see below), whose sum is σ = 43966850112. Its totient is φ = 36310176000.

The previous prime is 40121931061. The next prime is 40121931139. The reversal of 40121931113 is 31113912104.

40121931113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40121931113 - 2⁶ = 40121931049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40121931173) 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, 3589253 + ... + 3600413.

It is an arithmetic number, because the mean of its divisors is an integer number (2747928132).

Almost surely, 2^40121931113 is an apocalyptic number.

It is an amenable number.

40121931113 is a deficient number, since it is larger than the sum of its proper divisors (3844918999).

40121931113 is a wasteful number, since it uses less digits than its factorization.

40121931113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12616.

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

The spelling of 40121931113 in words is "forty billion, one hundred twenty-one million, nine hundred thirty-one thousand, one hundred thirteen".