1220113134 has 12 divisors (see below), whose sum is σ = 2643578496. Its totient is φ = 406704372.

The previous prime is 1220113133. The next prime is 1220113163. The reversal of 1220113134 is 4313110221.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67784063 = 1220113134 / (1 + 2 + 2 + 0 + 1 + 1 + 3 + 1 + 3 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220113133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33892014 + ... + 33892049.

It is an arithmetic number, because the mean of its divisors is an integer number (220298208).

Almost surely, 2^1220113134 is an apocalyptic number.

1220113134 is an abundant number, since it is smaller than the sum of its proper divisors (1423465362).

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

1220113134 is a wasteful number, since it uses less digits than its factorization.

1220113134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67784071 (or 67784068 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1220113134 is about 34930.1178641012. The cubic root of 1220113134 is about 1068.5627583745.

Adding to 1220113134 its reverse (4313110221), we get a palindrome (5533223355).

The spelling of 1220113134 in words is "one billion, two hundred twenty million, one hundred thirteen thousand, one hundred thirty-four".