2123996441663 has 2 divisors, whose sum is σ = 2123996441664. Its totient is φ = 2123996441662.

The previous prime is 2123996441599. The next prime is 2123996441681. The reversal of 2123996441663 is 3661446993212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123996441663 - 2⁶ = 2123996441599 is a prime.

It is a super-2 number, since 2×2123996441663² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2123996441599 and 2123996441608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123996443663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061998220831 + 1061998220832.

It is an arithmetic number, because the mean of its divisors is an integer number (1061998220832).

Almost surely, 2^{2123996441663} is an apocalyptic number.

2123996441663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123996441663 is an equidigital number, since it uses as much as digits as its factorization.

2123996441663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 56.

The spelling of 2123996441663 in words is "two trillion, one hundred twenty-three billion, nine hundred ninety-six million, four hundred forty-one thousand, six hundred sixty-three".