1311455101 has 16 divisors (see below), whose sum is σ = 1494638208. Its totient is φ = 1139054400.

The previous prime is 1311455077. The next prime is 1311455113. The reversal of 1311455101 is 1015541131.

It is not a de Polignac number, because 1311455101 - 2²¹ = 1309357949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311455141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255775 + ... + 260851.

It is an arithmetic number, because the mean of its divisors is an integer number (93414888).

Almost surely, 2^1311455101 is an apocalyptic number.

1311455101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311455101 is a deficient number, since it is larger than the sum of its proper divisors (183183107).

1311455101 is a wasteful number, since it uses less digits than its factorization.

1311455101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 1311455101 is about 36214.0180178891. The cubic root of 1311455101 is about 1094.5891582998.

Adding to 1311455101 its reverse (1015541131), we get a palindrome (2326996232).

The spelling of 1311455101 in words is "one billion, three hundred eleven million, four hundred fifty-five thousand, one hundred one".