1243234130 has 32 divisors (see below), whose sum is σ = 2295613440. Its totient is φ = 484545600.

The previous prime is 1243234121. The next prime is 1243234133. The reversal of 1243234130 is 314323421.

It is a super-2 number, since 2×1243234130² = 3091262203993713800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1243234096 and 1243234105.

It is not an unprimeable number, because it can be changed into a prime (1243234133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101855 + ... + 113405.

It is an arithmetic number, because the mean of its divisors is an integer number (71737920).

Almost surely, 2^1243234130 is an apocalyptic number.

1243234130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1243234130 is a deficient number, since it is larger than the sum of its proper divisors (1052379310).

1243234130 is a wasteful number, since it uses less digits than its factorization.

1243234130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1243234130 is about 35259.5253796758. The cubic root of 1243234130 is about 1075.2702778132.

Adding to 1243234130 its reverse (314323421), we get a palindrome (1557557551).

The spelling of 1243234130 in words is "one billion, two hundred forty-three million, two hundred thirty-four thousand, one hundred thirty".