1223381112 has 32 divisors (see below), whose sum is σ = 3059344080. Its totient is φ = 407674880.

The previous prime is 1223381111. The next prime is 1223381113. The reversal of 1223381112 is 2111833221.

It is an interprime number because it is at equal distance from previous prime (1223381111) and next prime (1223381113).

It is a super-2 number, since 2×1223381112² = 2993322690396713088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223381111) 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, 124408 + ... + 133880.

Almost surely, 2^1223381112 is an apocalyptic number.

1223381112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223381112 is an abundant number, since it is smaller than the sum of its proper divisors (1835962968).

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

1223381112 is a wasteful number, since it uses less digits than its factorization.

1223381112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863 (or 14859 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 1223381112 is about 34976.8653827069. The cubic root of 1223381112 is about 1069.5159285905.

The spelling of 1223381112 in words is "one billion, two hundred twenty-three million, three hundred eighty-one thousand, one hundred twelve".