1312201112 has 8 divisors (see below), whose sum is σ = 2460377100. Its totient is φ = 656100552.

The previous prime is 1312201081. The next prime is 1312201127. The reversal of 1312201112 is 2111022131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82012562 + ... + 82012577.

Almost surely, 2^1312201112 is an apocalyptic number.

It is an amenable number.

1312201112 is a deficient number, since it is larger than the sum of its proper divisors (1148175988).

1312201112 is a wasteful number, since it uses less digits than its factorization.

1312201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164025145 (or 164025141 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1312201112 is about 36224.3165843056. The cubic root of 1312201112 is about 1094.7966684582.

Adding to 1312201112 its reverse (2111022131), we get a palindrome (3423223243).

The spelling of 1312201112 in words is "one billion, three hundred twelve million, two hundred one thousand, one hundred twelve".