1321134152 has 32 divisors (see below), whose sum is σ = 2669822400. Its totient is φ = 609263424.

The previous prime is 1321134151. The next prime is 1321134187. The reversal of 1321134152 is 2514311231.

It is not an unprimeable number, because it can be changed into a prime (1321134151) 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, 146099 + ... + 154877.

It is an arithmetic number, because the mean of its divisors is an integer number (83431950).

Almost surely, 2^1321134152 is an apocalyptic number.

It is an amenable number.

1321134152 is an abundant number, since it is smaller than the sum of its proper divisors (1348688248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321134152 is a wasteful number, since it uses less digits than its factorization.

1321134152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10245 (or 10241 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 1321134152 is about 36347.4091511348. The cubic root of 1321134152 is about 1097.2753924854.

Adding to 1321134152 its reverse (2514311231), we get a palindrome (3835445383).

The spelling of 1321134152 in words is "one billion, three hundred twenty-one million, one hundred thirty-four thousand, one hundred fifty-two".