2113386386831 has 2 divisors, whose sum is σ = 2113386386832. Its totient is φ = 2113386386830.

The previous prime is 2113386386827. The next prime is 2113386386843. The reversal of 2113386386831 is 1386836833112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2113386386831 - 2² = 2113386386827 is a prime.

It is a super-2 number, since 2×2113386386831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113386382831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056693193415 + 1056693193416.

It is an arithmetic number, because the mean of its divisors is an integer number (1056693193416).

Almost surely, 2^{2113386386831} is an apocalyptic number.

2113386386831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113386386831 is an equidigital number, since it uses as much as digits as its factorization.

2113386386831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2985984, while the sum is 53.

The spelling of 2113386386831 in words is "two trillion, one hundred thirteen billion, three hundred eighty-six million, three hundred eighty-six thousand, eight hundred thirty-one".