31421030444109 has 12 divisors (see below), whose sum is σ = 48055693620636. Its totient is φ = 19715156356992.

The previous prime is 31421030444107. The next prime is 31421030444123. The reversal of 31421030444109 is 90144403012413.

31421030444109 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 103 + 0 + 444 + 109 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15211146621609 + 16209883822500 = 3900147^2 + 4026150^2 .

It is not a de Polignac number, because 31421030444109 - 2¹ = 31421030444107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31421030444101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102683105874 + ... + 102683106179.

It is an arithmetic number, because the mean of its divisors is an integer number (4004641135053).

Almost surely, 2^{31421030444109} is an apocalyptic number.

It is an amenable number.

31421030444109 is a deficient number, since it is larger than the sum of its proper divisors (16634663176527).

31421030444109 is a wasteful number, since it uses less digits than its factorization.

31421030444109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205366212076 (or 205366212073 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 31421030444109 in words is "thirty-one trillion, four hundred twenty-one billion, thirty million, four hundred forty-four thousand, one hundred nine".