12121132013 has 8 divisors (see below), whose sum is σ = 12407427648. Its totient is φ = 11835036864.

The previous prime is 12121132007. The next prime is 12121132019. The reversal of 12121132013 is 31023112121.

It is an interprime number because it is at equal distance from previous prime (12121132007) and next prime (12121132019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12121132013 - 2²² = 12116937709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12121131982 and 12121132000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121132019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75920 + ... + 173222.

It is an arithmetic number, because the mean of its divisors is an integer number (1550928456).

Almost surely, 2^12121132013 is an apocalyptic number.

It is an amenable number.

12121132013 is a deficient number, since it is larger than the sum of its proper divisors (286295635).

12121132013 is an equidigital number, since it uses as much as digits as its factorization.

12121132013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100243.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12121132013 its reverse (31023112121), we get a palindrome (43144244134).

The spelling of 12121132013 in words is "twelve billion, one hundred twenty-one million, one hundred thirty-two thousand, thirteen".