423122130 has 40 divisors (see below), whose sum is σ = 1137730572. Its totient is φ = 112832352.

The previous prime is 423122123. The next prime is 423122137. The reversal of 423122130 is 31221324.

It is an interprime number because it is at equal distance from previous prime (423122123) and next prime (423122137).

It can be written as a sum of positive squares in 2 ways, for example, as 391683681 + 31438449 = 19791^2 + 5607^2 .

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 (423122137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 260377 + ... + 261996.

Almost surely, 2^423122130 is an apocalyptic number.

423122130 is an abundant number, since it is smaller than the sum of its proper divisors (714608442).

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

423122130 is a wasteful number, since it uses less digits than its factorization.

423122130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522392 (or 522383 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 423122130 is about 20569.9326688251. The cubic root of 423122130 is about 750.7383129535.

Adding to 423122130 its reverse (31221324), we get a palindrome (454343454).

The spelling of 423122130 in words is "four hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty".