1123256365264 has 40 divisors (see below), whose sum is σ = 2376689632128. Its totient is φ = 510026100480.

The previous prime is 1123256365241. The next prime is 1123256365267. The reversal of 1123256365264 is 4625636523211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123256365267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240712 + ... + 3570535.

Almost surely, 2^{1123256365264} is an apocalyptic number.

It is an amenable number.

1123256365264 is an abundant number, since it is smaller than the sum of its proper divisors (1253433266864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123256365264 is a wasteful number, since it uses less digits than its factorization.

1123256365264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6812203 (or 6812197 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 46.

The spelling of 1123256365264 in words is "one trillion, one hundred twenty-three billion, two hundred fifty-six million, three hundred sixty-five thousand, two hundred sixty-four".