1228310923056 has 80 divisors (see below), whose sum is σ = 3626866627584. Its totient is φ = 350904863232.

The previous prime is 1228310923039. The next prime is 1228310923069. The reversal of 1228310923056 is 6503290138221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1228310922999 and 1228310923017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2717785 + ... + 3137351.

Almost surely, 2^{1228310923056} is an apocalyptic number.

1228310923056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1228310923056 is an abundant number, since it is smaller than the sum of its proper divisors (2398555704528).

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

1228310923056 is a wasteful number, since it uses less digits than its factorization.

1228310923056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428298 (or 428292 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 1228310923056 in words is "one trillion, two hundred twenty-eight billion, three hundred ten million, nine hundred twenty-three thousand, fifty-six".