1234313505 has 16 divisors (see below), whose sum is σ = 2194335360. Its totient is φ = 658300464.

The previous prime is 1234313503. The next prime is 1234313513. The reversal of 1234313505 is 5053134321.

1234313505 is a `hidden beast` number, since 123 + 4 + 31 + 3 + 505 = 666.

It is not a de Polignac number, because 1234313505 - 2¹ = 1234313503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1234313503) 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, 4571397 + ... + 4571666.

It is an arithmetic number, because the mean of its divisors is an integer number (137145960).

Almost surely, 2^1234313505 is an apocalyptic number.

1234313505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1234313505 is a deficient number, since it is larger than the sum of its proper divisors (960021855).

1234313505 is an equidigital number, since it uses as much as digits as its factorization.

1234313505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143077 (or 9143071 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1234313505 is about 35132.7981379223. The cubic root of 1234313505 is about 1072.6922927742.

Adding to 1234313505 its reverse (5053134321), we get a palindrome (6287447826).

The spelling of 1234313505 in words is "one billion, two hundred thirty-four million, three hundred thirteen thousand, five hundred five".