1311213134 has 32 divisors (see below), whose sum is σ = 2536704000. Its totient is φ = 493244640.

The previous prime is 1311213133. The next prime is 1311213149. The reversal of 1311213134 is 4313121131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311213131) 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, 142334 + ... + 151265.

It is an arithmetic number, because the mean of its divisors is an integer number (79272000).

Almost surely, 2^1311213134 is an apocalyptic number.

1311213134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1311213134 is a deficient number, since it is larger than the sum of its proper divisors (1225490866).

1311213134 is a wasteful number, since it uses less digits than its factorization.

1311213134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293648.

The product of its digits is 216, while the sum is 20.

The square root of 1311213134 is about 36210.6770718251. The cubic root of 1311213134 is about 1094.5218359428.

Adding to 1311213134 its reverse (4313121131), we get a palindrome (5624334265).

The spelling of 1311213134 in words is "one billion, three hundred eleven million, two hundred thirteen thousand, one hundred thirty-four".