2109231127793 has 2 divisors, whose sum is σ = 2109231127794. Its totient is φ = 2109231127792.

The previous prime is 2109231127781. The next prime is 2109231127867. The reversal of 2109231127793 is 3977211329012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1392038943409 + 717192184384 = 1179847^2 + 846872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2109231127793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2109231127733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054615563896 + 1054615563897.

It is an arithmetic number, because the mean of its divisors is an integer number (1054615563897).

Almost surely, 2^{2109231127793} is an apocalyptic number.

It is an amenable number.

2109231127793 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109231127793 is an equidigital number, since it uses as much as digits as its factorization.

2109231127793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 2109231127793 in words is "two trillion, one hundred nine billion, two hundred thirty-one million, one hundred twenty-seven thousand, seven hundred ninety-three".