1230342130 has 16 divisors (see below), whose sum is σ = 2274471000. Its totient is φ = 478835712.

The previous prime is 1230342119. The next prime is 1230342133. The reversal of 1230342130 is 312430321.

It can be written as a sum of positive squares in 4 ways, for example, as 912825369 + 317516761 = 30213^2 + 17819^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1230342098 and 1230342107.

It is not an unprimeable number, because it can be changed into a prime (1230342133) 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, 1662255 + ... + 1662994.

Almost surely, 2^1230342130 is an apocalyptic number.

1230342130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230342130 is a deficient number, since it is larger than the sum of its proper divisors (1044128870).

1230342130 is a wasteful number, since it uses less digits than its factorization.

1230342130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325293.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1230342130 is about 35076.2331215882. The cubic root of 1230342130 is about 1071.5406025414.

Adding to 1230342130 its reverse (312430321), we get a palindrome (1542772451).

The spelling of 1230342130 in words is "one billion, two hundred thirty million, three hundred forty-two thousand, one hundred thirty".