1123989956232 has 384 divisors, whose sum is σ = 3403438080000. Its totient is φ = 307183726080.

The previous prime is 1123989956191. The next prime is 1123989956239. The reversal of 1123989956232 is 2326599893211.

It is not an unprimeable number, because it can be changed into a prime (1123989956239) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 321230019 + ... + 321233517.

It is an arithmetic number, because the mean of its divisors is an integer number (8863120000).

Almost surely, 2^{1123989956232} is an apocalyptic number.

1123989956232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123989956232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701719040000).

1123989956232 is an abundant number, since it is smaller than the sum of its proper divisors (2279448123768).

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

1123989956232 is a wasteful number, since it uses less digits than its factorization.

1123989956232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737 (or 3722 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 60.

The spelling of 1123989956232 in words is "one trillion, one hundred twenty-three billion, nine hundred eighty-nine million, nine hundred fifty-six thousand, two hundred thirty-two".