1111103212 has 24 divisors (see below), whose sum is σ = 1958523840. Its totient is φ = 551538960.

The previous prime is 1111103197. The next prime is 1111103237. The reversal of 1111103212 is 2123011111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1111103192 and 1111103201.

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, 392739 + ... + 395557.

It is an arithmetic number, because the mean of its divisors is an integer number (81605160).

Almost surely, 2^1111103212 is an apocalyptic number.

It is an amenable number.

1111103212 is a deficient number, since it is larger than the sum of its proper divisors (847420628).

1111103212 is a wasteful number, since it uses less digits than its factorization.

1111103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501 (or 3499 counting only the distinct ones).

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

The square root of 1111103212 is about 33333.2148464561. The cubic root of 1111103212 is about 1035.7417142080.

Adding to 1111103212 its reverse (2123011111), we get a palindrome (3234114323).

The spelling of 1111103212 in words is "one billion, one hundred eleven million, one hundred three thousand, two hundred twelve".