1311412011 has 32 divisors (see below), whose sum is σ = 2278660608. Its totient is φ = 651041280.

The previous prime is 1311412007. The next prime is 1311412013. The reversal of 1311412011 is 1102141131.

It is not a de Polignac number, because 1311412011 - 2² = 1311412007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311412013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136645 + ... + 145926.

It is an arithmetic number, because the mean of its divisors is an integer number (71208144).

Almost surely, 2^1311412011 is an apocalyptic number.

1311412011 is a deficient number, since it is larger than the sum of its proper divisors (967248597).

1311412011 is a wasteful number, since it uses less digits than its factorization.

1311412011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282611.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1311412011 is about 36213.4230776379. The cubic root of 1311412011 is about 1094.5771699968.

Adding to 1311412011 its reverse (1102141131), we get a palindrome (2413553142).

The spelling of 1311412011 in words is "one billion, three hundred eleven million, four hundred twelve thousand, eleven".