1213033130 has 16 divisors (see below), whose sum is σ = 2311898760. Its totient is φ = 456671232.

The previous prime is 1213033121. The next prime is 1213033201. The reversal of 1213033130 is 313303121.

It can be written as a sum of positive squares in 4 ways, for example, as 868893529 + 344139601 = 29477^2 + 18551^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1213033099 and 1213033108.

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, 3567575 + ... + 3567914.

Almost surely, 2^1213033130 is an apocalyptic number.

1213033130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213033130 is a deficient number, since it is larger than the sum of its proper divisors (1098865630).

1213033130 is a wasteful number, since it uses less digits than its factorization.

1213033130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135513.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1213033130 is about 34828.6251523083. The cubic root of 1213033130 is about 1066.4918822771.

Adding to 1213033130 its reverse (313303121), we get a palindrome (1526336251).

The spelling of 1213033130 in words is "one billion, two hundred thirteen million, thirty-three thousand, one hundred thirty".