12311201132 has 6 divisors (see below), whose sum is σ = 21544601988. Its totient is φ = 6155600564.

The previous prime is 12311201101. The next prime is 12311201137. The reversal of 12311201132 is 23110211321.

It is a self number, because there is not a number n which added to its sum of digits gives 12311201132.

It is not an unprimeable number, because it can be changed into a prime (12311201137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1538900138 + ... + 1538900145.

It is an arithmetic number, because the mean of its divisors is an integer number (3590766998).

Almost surely, 2^12311201132 is an apocalyptic number.

It is an amenable number.

12311201132 is a deficient number, since it is larger than the sum of its proper divisors (9233400856).

12311201132 is a wasteful number, since it uses less digits than its factorization.

12311201132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077800287 (or 3077800285 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12311201132 its reverse (23110211321), we get a palindrome (35421412453).

The spelling of 12311201132 in words is "twelve billion, three hundred eleven million, two hundred one thousand, one hundred thirty-two".