2113144409969 has 2 divisors, whose sum is σ = 2113144409970. Its totient is φ = 2113144409968.

The previous prime is 2113144409911. The next prime is 2113144410011. The reversal of 2113144409969 is 9699044413112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2112545971600 + 598438369 = 1453460^2 + 24463^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113144409969 - 2³² = 2108849442673 is a prime.

It is a super-2 number, since 2×2113144409969² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2113144409969.

It is not a weakly prime, because it can be changed into another prime (2113144409569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056572204984 + 1056572204985.

It is an arithmetic number, because the mean of its divisors is an integer number (1056572204985).

Almost surely, 2^{2113144409969} is an apocalyptic number.

It is an amenable number.

2113144409969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113144409969 is an equidigital number, since it uses as much as digits as its factorization.

2113144409969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 2113144409969 in words is "two trillion, one hundred thirteen billion, one hundred forty-four million, four hundred nine thousand, nine hundred sixty-nine".