1121082711828 has 24 divisors (see below), whose sum is σ = 2622448739232. Its totient is φ = 372752940384.

The previous prime is 1121082711821. The next prime is 1121082711829. The reversal of 1121082711828 is 8281172801211.

It is a super-2 number, since 2×1121082711828² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1121082711828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121082711821) 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, 117657150 + ... + 117666677.

It is an arithmetic number, because the mean of its divisors is an integer number (109268697468).

Almost surely, 2^{1121082711828} is an apocalyptic number.

It is an amenable number.

1121082711828 is an abundant number, since it is smaller than the sum of its proper divisors (1501366027404).

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

1121082711828 is a wasteful number, since it uses less digits than its factorization.

1121082711828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235324231 (or 235324229 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 42.

The spelling of 1121082711828 in words is "one trillion, one hundred twenty-one billion, eighty-two million, seven hundred eleven thousand, eight hundred twenty-eight".