1231324134 has 16 divisors (see below), whose sum is σ = 2464328880. Its totient is φ = 410161280.

The previous prime is 1231324121. The next prime is 1231324139. The reversal of 1231324134 is 4314231321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231324139) 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, 60399 + ... + 78170.

It is an arithmetic number, because the mean of its divisors is an integer number (154020555).

Almost surely, 2^1231324134 is an apocalyptic number.

1231324134 is an abundant number, since it is smaller than the sum of its proper divisors (1233004746).

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

1231324134 is a wasteful number, since it uses less digits than its factorization.

1231324134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140055.

The product of its digits is 1728, while the sum is 24.

The square root of 1231324134 is about 35090.2284689057. The cubic root of 1231324134 is about 1071.8256119713.

Adding to 1231324134 its reverse (4314231321), we get a palindrome (5545555455).

The spelling of 1231324134 in words is "one billion, two hundred thirty-one million, three hundred twenty-four thousand, one hundred thirty-four".