1311432101 has 8 divisors (see below), whose sum is σ = 1563944064. Its totient is φ = 1075211280.

The previous prime is 1311432077. The next prime is 1311432151. The reversal of 1311432101 is 1012341131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311432101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1311432101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311432151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4072610 + ... + 4072931.

It is an arithmetic number, because the mean of its divisors is an integer number (195493008).

Almost surely, 2^1311432101 is an apocalyptic number.

It is an amenable number.

1311432101 is a deficient number, since it is larger than the sum of its proper divisors (252511963).

1311432101 is an equidigital number, since it uses as much as digits as its factorization.

1311432101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8145571.

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

The square root of 1311432101 is about 36213.7004599088. The cubic root of 1311432101 is about 1094.5827593775.

Adding to 1311432101 its reverse (1012341131), we get a palindrome (2323773232).

The spelling of 1311432101 in words is "one billion, three hundred eleven million, four hundred thirty-two thousand, one hundred one".