1123257087472 has 40 divisors (see below), whose sum is σ = 2346574184640. Its totient is φ = 517794812160.

The previous prime is 1123257087467. The next prime is 1123257087473. The reversal of 1123257087472 is 2747807523211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123257087473) 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, 3118072 + ... + 3459607.

It is an arithmetic number, because the mean of its divisors is an integer number (58664354616).

Almost surely, 2^{1123257087472} is an apocalyptic number.

It is an amenable number.

1123257087472 is an abundant number, since it is smaller than the sum of its proper divisors (1223317097168).

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

1123257087472 is a wasteful number, since it uses less digits than its factorization.

1123257087472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6578521 (or 6578515 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 1123257087472 in words is "one trillion, one hundred twenty-three billion, two hundred fifty-seven million, eighty-seven thousand, four hundred seventy-two".