1212000013 has 4 divisors (see below), whose sum is σ = 1385142880. Its totient is φ = 1038857148.

The previous prime is 1212000011. The next prime is 1212000017. The reversal of 1212000013 is 3100002121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1212000013 - 2¹ = 1212000011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212000011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86571423 + ... + 86571436.

It is an arithmetic number, because the mean of its divisors is an integer number (346285720).

Almost surely, 2^1212000013 is an apocalyptic number.

It is an amenable number.

1212000013 is a deficient number, since it is larger than the sum of its proper divisors (173142867).

1212000013 is an equidigital number, since it uses as much as digits as its factorization.

1212000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173142866.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1212000013 is about 34813.7905577660. The cubic root of 1212000013 is about 1066.1890260699.

Adding to 1212000013 its reverse (3100002121), we get a palindrome (4312002134).

The spelling of 1212000013 in words is "one billion, two hundred twelve million, thirteen", and thus it is an aban number.