2123996441599 has 2 divisors, whose sum is σ = 2123996441600. Its totient is φ = 2123996441598.

The previous prime is 2123996441591. The next prime is 2123996441663. The reversal of 2123996441599 is 9951446993212.

It is an a-pointer prime, because the next prime (2123996441663) can be obtained adding 2123996441599 to its sum of digits (64).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123996441599 - 2³ = 2123996441591 is a prime.

It is a super-2 number, since 2×2123996441599² (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 2123996441599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123996441591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061998220799 + 1061998220800.

It is an arithmetic number, because the mean of its divisors is an integer number (1061998220800).

Almost surely, 2^{2123996441599} is an apocalyptic number.

2123996441599 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123996441599 is an equidigital number, since it uses as much as digits as its factorization.

2123996441599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37791360, while the sum is 64.

The spelling of 2123996441599 in words is "two trillion, one hundred twenty-three billion, nine hundred ninety-six million, four hundred forty-one thousand, five hundred ninety-nine".