1123421299975 has 24 divisors (see below), whose sum is σ = 1500635984400. Its totient is φ = 829362059520.

The previous prime is 1123421299939. The next prime is 1123421299991. The reversal of 1123421299975 is 5799921243211.

It is not a de Polignac number, because 1123421299975 - 2³³ = 1114831365383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 619812 + ... + 1622038.

It is an arithmetic number, because the mean of its divisors is an integer number (62526499350).

Almost surely, 2^{1123421299975} is an apocalyptic number.

1123421299975 is a deficient number, since it is larger than the sum of its proper divisors (377214684425).

1123421299975 is a wasteful number, since it uses less digits than its factorization.

1123421299975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005699 (or 1005694 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 55.

The spelling of 1123421299975 in words is "one trillion, one hundred twenty-three billion, four hundred twenty-one million, two hundred ninety-nine thousand, nine hundred seventy-five".