1111382279952 has 160 divisors (see below), whose sum is σ = 3471456384000. Its totient is φ = 299297908224.

The previous prime is 1111382279947. The next prime is 1111382279981. The reversal of 1111382279952 is 2599722831111.

It is a super-2 number, since 2×1111382279952² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111382279895 and 1111382279904.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 815799 + ... + 1699497.

It is an arithmetic number, because the mean of its divisors is an integer number (21696602400).

Almost surely, 2^{1111382279952} is an apocalyptic number.

1111382279952 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 1111382279952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1735728192000).

1111382279952 is an abundant number, since it is smaller than the sum of its proper divisors (2360074104048).

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

1111382279952 is a wasteful number, since it uses less digits than its factorization.

1111382279952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883933 (or 883927 counting only the distinct ones).

The product of its digits is 544320, while the sum is 51.

The spelling of 1111382279952 in words is "one trillion, one hundred eleven billion, three hundred eighty-two million, two hundred seventy-nine thousand, nine hundred fifty-two".