1233122130 has 80 divisors (see below), whose sum is σ = 3348779544. Its totient is φ = 325555200.

The previous prime is 1233122113. The next prime is 1233122131. The reversal of 1233122130 is 312213321.

It can be written as a sum of positive squares in 4 ways, for example, as 1193771601 + 39350529 = 34551^2 + 6273^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1233122131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 74274 + ... + 89346.

Almost surely, 2^1233122130 is an apocalyptic number.

1233122130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1233122130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674389772).

1233122130 is an abundant number, since it is smaller than the sum of its proper divisors (2115657414).

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

1233122130 is a wasteful number, since it uses less digits than its factorization.

1233122130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15193 (or 15184 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1233122130 is about 35115.8387341097. The cubic root of 1233122130 is about 1072.3470562872.

Adding to 1233122130 its reverse (312213321), we get a palindrome (1545335451).

The spelling of 1233122130 in words is "one billion, two hundred thirty-three million, one hundred twenty-two thousand, one hundred thirty".