121230013 has 4 divisors (see below), whose sum is σ = 127610560. Its totient is φ = 114849468.

The previous prime is 121229981. The next prime is 121230017. The reversal of 121230013 is 310032121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310032121 = 7 ⋅44290303.

It is a cyclic number.

It is not a de Polignac number, because 121230013 - 2⁵ = 121229981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121229975 and 121230002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3190245 + ... + 3190282.

It is an arithmetic number, because the mean of its divisors is an integer number (31902640).

Almost surely, 2^121230013 is an apocalyptic number.

It is an amenable number.

121230013 is a deficient number, since it is larger than the sum of its proper divisors (6380547).

121230013 is an equidigital number, since it uses as much as digits as its factorization.

121230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380546.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121230013 is about 11010.4501724498. The cubic root of 121230013 is about 494.9219521200.

Adding to 121230013 its reverse (310032121), we get a palindrome (431262134).

The spelling of 121230013 in words is "one hundred twenty-one million, two hundred thirty thousand, thirteen".