2031200100109 has 2 divisors, whose sum is σ = 2031200100110. Its totient is φ = 2031200100108.

The previous prime is 2031200100029. The next prime is 2031200100131. The reversal of 2031200100109 is 9010010021302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1241323537609 + 789876562500 = 1114147^2 + 888750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031200100109 - 2¹⁵ = 2031200067341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031200103109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015600050054 + 1015600050055.

It is an arithmetic number, because the mean of its divisors is an integer number (1015600050055).

Almost surely, 2^{2031200100109} is an apocalyptic number.

It is an amenable number.

2031200100109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031200100109 is an equidigital number, since it uses as much as digits as its factorization.

2031200100109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 2031200100109 in words is "two trillion, thirty-one billion, two hundred million, one hundred thousand, one hundred nine".