1321011112 has 32 divisors (see below), whose sum is σ = 2646685800. Its totient is φ = 615942144.

The previous prime is 1321011101. The next prime is 1321011149. The reversal of 1321011112 is 2111101231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1280637796 + 40373316 = 35786^2 + 6354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1321011092 and 1321011101.

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, 29733 + ... + 59380.

Almost surely, 2^1321011112 is an apocalyptic number.

It is an amenable number.

1321011112 is an abundant number, since it is smaller than the sum of its proper divisors (1325674688).

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

1321011112 is a wasteful number, since it uses less digits than its factorization.

1321011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89245 (or 89241 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1321011112 is about 36345.7165564252. The cubic root of 1321011112 is about 1097.2413275734.

Adding to 1321011112 its reverse (2111101231), we get a palindrome (3432112343).

The spelling of 1321011112 in words is "one billion, three hundred twenty-one million, eleven thousand, one hundred twelve".