1311334151 has 16 divisors (see below), whose sum is σ = 1449122400. Its totient is φ = 1181042688.

The previous prime is 1311334133. The next prime is 1311334159. The reversal of 1311334151 is 1514331131.

It is a cyclic number.

It is not a de Polignac number, because 1311334151 - 2¹⁴ = 1311317767 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 (1311334159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43940 + ... + 67478.

It is an arithmetic number, because the mean of its divisors is an integer number (90570150).

Almost surely, 2^1311334151 is an apocalyptic number.

1311334151 is a deficient number, since it is larger than the sum of its proper divisors (137788249).

1311334151 is a wasteful number, since it uses less digits than its factorization.

1311334151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23698.

The product of its digits is 540, while the sum is 23.

The square root of 1311334151 is about 36212.3480459359. The cubic root of 1311334151 is about 1094.5555074772. Note that the first 4 decimals are identical.

Adding to 1311334151 its reverse (1514331131), we get a palindrome (2825665282).

The spelling of 1311334151 in words is "one billion, three hundred eleven million, three hundred thirty-four thousand, one hundred fifty-one".