1213665030 has 24 divisors (see below), whose sum is σ = 3155529312. Its totient is φ = 323643984.

The previous prime is 1213665029. The next prime is 1213665031. The reversal of 1213665030 is 305663121.

1213665030 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 6 + 650 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1213665029) and next prime (1213665031).

It is a junction number, because it is equal to n+sod(n) for n = 1213664985 and 1213665003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213665031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6742494 + ... + 6742673.

It is an arithmetic number, because the mean of its divisors is an integer number (131480388).

Almost surely, 2^1213665030 is an apocalyptic number.

1213665030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213665030 is an abundant number, since it is smaller than the sum of its proper divisors (1941864282).

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

1213665030 is a wasteful number, since it uses less digits than its factorization.

1213665030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13485180 (or 13485177 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1213665030 is about 34837.6955322823. The cubic root of 1213665030 is about 1066.6770377681.

The spelling of 1213665030 in words is "one billion, two hundred thirteen million, six hundred sixty-five thousand, thirty".