1321433134 has 16 divisors (see below), whose sum is σ = 2288670048. Its totient is φ = 560489472.

The previous prime is 1321433131. The next prime is 1321433221. The reversal of 1321433134 is 4313341231.

It is a junction number, because it is equal to n+sod(n) for n = 1321433099 and 1321433108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321433131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485179 + ... + 487894.

It is an arithmetic number, because the mean of its divisors is an integer number (143041878).

Almost surely, 2^1321433134 is an apocalyptic number.

1321433134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1321433134 is a deficient number, since it is larger than the sum of its proper divisors (967236914).

1321433134 is an equidigital number, since it uses as much as digits as its factorization.

1321433134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973179.

The product of its digits is 2592, while the sum is 25.

The square root of 1321433134 is about 36351.5217563172. The cubic root of 1321433134 is about 1097.3581599687.

Adding to 1321433134 its reverse (4313341231), we get a palindrome (5634774365).

The spelling of 1321433134 in words is "one billion, three hundred twenty-one million, four hundred thirty-three thousand, one hundred thirty-four".