1228454260823 has 2 divisors, whose sum is σ = 1228454260824. Its totient is φ = 1228454260822.

The previous prime is 1228454260757. The next prime is 1228454260871. The reversal of 1228454260823 is 3280624548221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228454260823 - 2¹² = 1228454256727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1228454160823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614227130411 + 614227130412.

It is an arithmetic number, because the mean of its divisors is an integer number (614227130412).

Almost surely, 2^{1228454260823} is an apocalyptic number.

1228454260823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228454260823 is an equidigital number, since it uses as much as digits as its factorization.

1228454260823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1474560, while the sum is 47.

The spelling of 1228454260823 in words is "one trillion, two hundred twenty-eight billion, four hundred fifty-four million, two hundred sixty thousand, eight hundred twenty-three".