1213431134 has 8 divisors (see below), whose sum is σ = 1927214208. Its totient is φ = 571026400.

The previous prime is 1213431133. The next prime is 1213431139. The reversal of 1213431134 is 4311343121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213431133) 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 3 ways as a sum of consecutive naturals, for example, 17844542 + ... + 17844609.

It is an arithmetic number, because the mean of its divisors is an integer number (240901776).

Almost surely, 2^1213431134 is an apocalyptic number.

1213431134 is a deficient number, since it is larger than the sum of its proper divisors (713783074).

1213431134 is a wasteful number, since it uses less digits than its factorization.

1213431134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35689170.

The product of its digits is 864, while the sum is 23.

The square root of 1213431134 is about 34834.3384320702. The cubic root of 1213431134 is about 1066.6085104795.

Adding to 1213431134 its reverse (4311343121), we get a palindrome (5524774255).

The spelling of 1213431134 in words is "one billion, two hundred thirteen million, four hundred thirty-one thousand, one hundred thirty-four".