1223312134 has 16 divisors (see below), whose sum is σ = 2012973120. Its totient is φ = 552942760.

The previous prime is 1223312119. The next prime is 1223312137. The reversal of 1223312134 is 4312133221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223312137) 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, 151384 + ... + 159259.

It is an arithmetic number, because the mean of its divisors is an integer number (125810820).

Almost surely, 2^1223312134 is an apocalyptic number.

1223312134 is a deficient number, since it is larger than the sum of its proper divisors (789660986).

1223312134 is a wasteful number, since it uses less digits than its factorization.

1223312134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310835.

The product of its digits is 864, while the sum is 22.

The square root of 1223312134 is about 34975.8793170379. The cubic root of 1223312134 is about 1069.4958273439.

Adding to 1223312134 its reverse (4312133221), we get a palindrome (5535445355).

The spelling of 1223312134 in words is "one billion, two hundred twenty-three million, three hundred twelve thousand, one hundred thirty-four".