1213615130 has 64 divisors (see below), whose sum is σ = 2732825088. Its totient is φ = 377775360.

The previous prime is 1213615103. The next prime is 1213615189. The reversal of 1213615130 is 315163121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213615096 and 1213615105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44579 + ... + 66441.

It is an arithmetic number, because the mean of its divisors is an integer number (42700392).

Almost surely, 2^1213615130 is an apocalyptic number.

1213615130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213615130 is an abundant number, since it is smaller than the sum of its proper divisors (1519209958).

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

1213615130 is a wasteful number, since it uses less digits than its factorization.

1213615130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21951.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1213615130 is about 34836.9793466655. The cubic root of 1213615130 is about 1066.6624187114.

Adding to 1213615130 its reverse (315163121), we get a palindrome (1528778251).

The spelling of 1213615130 in words is "one billion, two hundred thirteen million, six hundred fifteen thousand, one hundred thirty".