1123101320 has 32 divisors (see below), whose sum is σ = 2756704320. Its totient is φ = 408400320.

The previous prime is 1123101313. The next prime is 1123101347. The reversal of 1123101320 is 231013211.

It is a super-2 number, since 2×1123101320² = 2522713149971484800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123101295 and 1123101304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275812 + ... + 1276691.

It is an arithmetic number, because the mean of its divisors is an integer number (86147010).

Almost surely, 2^1123101320 is an apocalyptic number.

1123101320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123101320 is an abundant number, since it is smaller than the sum of its proper divisors (1633603000).

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

1123101320 is a wasteful number, since it uses less digits than its factorization.

1123101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552525 (or 2552521 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1123101320 is about 33512.7038598798. The cubic root of 1123101320 is about 1039.4564837530.

Adding to 1123101320 its reverse (231013211), we get a palindrome (1354114531).

It can be divided in two parts, 1 and 123101320, that added together give a palindrome (123101321).

The spelling of 1123101320 in words is "one billion, one hundred twenty-three million, one hundred one thousand, three hundred twenty".