2113942097 has 2 divisors, whose sum is σ = 2113942098. Its totient is φ = 2113942096.

The previous prime is 2113942087. The next prime is 2113942123. The reversal of 2113942097 is 7902493112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1277633536 + 836308561 = 35744^2 + 28919^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113942097 - 2⁴ = 2113942081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113942097.

It is not a weakly prime, because it can be changed into another prime (2113942087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056971048 + 1056971049.

It is an arithmetic number, because the mean of its divisors is an integer number (1056971049).

Almost surely, 2^2113942097 is an apocalyptic number.

It is an amenable number.

2113942097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113942097 is an equidigital number, since it uses as much as digits as its factorization.

2113942097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2113942097 is about 45977.6260478942. The cubic root of 2113942097 is about 1283.4068781075.

It can be divided in two parts, 21139 and 42097, that added together give a palindrome (63236).

The spelling of 2113942097 in words is "two billion, one hundred thirteen million, nine hundred forty-two thousand, ninety-seven".