1111423032 has 80 divisors (see below), whose sum is σ = 3124994400. Its totient is φ = 369048960.

The previous prime is 1111423013. The next prime is 1111423051. The reversal of 1111423032 is 2303241111.

It is an interprime number because it is at equal distance from previous prime (1111423013) and next prime (1111423051).

It is a super-2 number, since 2×1111423032² = 2470522312120146048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1111422996 and 1111423014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 172444 + ... + 178772.

It is an arithmetic number, because the mean of its divisors is an integer number (39062430).

Almost surely, 2^1111423032 is an apocalyptic number.

1111423032 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 1111423032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562497200).

1111423032 is an abundant number, since it is smaller than the sum of its proper divisors (2013571368).

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

1111423032 is a wasteful number, since it uses less digits than its factorization.

1111423032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618 (or 6605 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1111423032 is about 33338.0118183433. The cubic root of 1111423032 is about 1035.8410806557.

Adding to 1111423032 its reverse (2303241111), we get a palindrome (3414664143).

The spelling of 1111423032 in words is "one billion, one hundred eleven million, four hundred twenty-three thousand, thirty-two".