1213420130 has 16 divisors (see below), whose sum is σ = 2352168504. Its totient is φ = 448032000.

The previous prime is 1213420127. The next prime is 1213420141. The reversal of 1213420130 is 310243121.

It can be written as a sum of positive squares in 4 ways, for example, as 737176801 + 476243329 = 27151^2 + 21823^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213420099 and 1213420108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4666871 + ... + 4667130.

Almost surely, 2^1213420130 is an apocalyptic number.

1213420130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213420130 is a deficient number, since it is larger than the sum of its proper divisors (1138748374).

1213420130 is a wasteful number, since it uses less digits than its factorization.

1213420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9334021.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1213420130 is about 34834.1804841165. The cubic root of 1213420130 is about 1066.6052862900.

Adding to 1213420130 its reverse (310243121), we get a palindrome (1523663251).

The spelling of 1213420130 in words is "one billion, two hundred thirteen million, four hundred twenty thousand, one hundred thirty".