1123260776399 has 2 divisors, whose sum is σ = 1123260776400. Its totient is φ = 1123260776398.

The previous prime is 1123260776381. The next prime is 1123260776401. The reversal of 1123260776399 is 9936770623211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123260776399 is a prime.

Together with 1123260776401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123260776329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561630388199 + 561630388200.

It is an arithmetic number, because the mean of its divisors is an integer number (561630388200).

Almost surely, 2^{1123260776399} is an apocalyptic number.

1123260776399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123260776399 is an equidigital number, since it uses as much as digits as its factorization.

1123260776399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The spelling of 1123260776399 in words is "one trillion, one hundred twenty-three billion, two hundred sixty million, seven hundred seventy-six thousand, three hundred ninety-nine".