1311110212 has 6 divisors (see below), whose sum is σ = 2294442878. Its totient is φ = 655555104.

The previous prime is 1311110183. The next prime is 1311110231. The reversal of 1311110212 is 2120111131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 872375296 + 438734916 = 29536^2 + 20946^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1311110192 and 1311110201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163888773 + ... + 163888780.

Almost surely, 2^1311110212 is an apocalyptic number.

It is an amenable number.

1311110212 is a deficient number, since it is larger than the sum of its proper divisors (983332666).

1311110212 is a wasteful number, since it uses less digits than its factorization.

1311110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327777557 (or 327777555 counting only the distinct ones).

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

The square root of 1311110212 is about 36209.2558885156. The cubic root of 1311110212 is about 1094.4931974957.

Adding to 1311110212 its reverse (2120111131), we get a palindrome (3431221343).

The spelling of 1311110212 in words is "one billion, three hundred eleven million, one hundred ten thousand, two hundred twelve".