13941021105 has 128 divisors (see below), whose sum is σ = 29327961600. Its totient is φ = 6206054400.

The previous prime is 13941021091. The next prime is 13941021121. The reversal of 13941021105 is 50112014931.

It is a happy number.

13941021105 is a `hidden beast` number, since 1 + 39 + 410 + 211 + 0 + 5 = 666.

It is not a de Polignac number, because 13941021105 - 2⁴ = 13941021089 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1028311 + ... + 1041779.

It is an arithmetic number, because the mean of its divisors is an integer number (229124700).

Almost surely, 2^13941021105 is an apocalyptic number.

13941021105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13941021105 is an abundant number, since it is smaller than the sum of its proper divisors (15386940495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13941021105 is a wasteful number, since it uses less digits than its factorization.

13941021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13552 (or 13546 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 13941021105 in words is "thirteen billion, nine hundred forty-one million, twenty-one thousand, one hundred five".