1123520554400 has 36 divisors (see below), whose sum is σ = 2742794555382. Its totient is φ = 449408221440.

The previous prime is 1123520554369. The next prime is 1123520554451. The reversal of 1123520554400 is 44550253211.

It can be written as a sum of positive squares in 3 ways, for example, as 1055476788496 + 68043765904 = 1027364^2 + 260852^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 702199547 + ... + 702201146.

Almost surely, 2^{1123520554400} is an apocalyptic number.

1123520554400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123520554400 is an abundant number, since it is smaller than the sum of its proper divisors (1619274000982).

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

1123520554400 is a wasteful number, since it uses less digits than its factorization.

1123520554400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404400713 (or 1404400700 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 1123520554400 in words is "one trillion, one hundred twenty-three billion, five hundred twenty million, five hundred fifty-four thousand, four hundred".