121230233213 has 8 divisors (see below), whose sum is σ = 128520104760. Its totient is φ = 113957992960.

The previous prime is 121230233197. The next prime is 121230233219. The reversal of 121230233213 is 312332032121.

It can be written as a sum of positive squares in 4 ways, for example, as 51384729124 + 69845504089 = 226682^2 + 264283^2 .

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 121230233213 - 2⁴ = 121230233197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230233219) 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, 4393658 + ... + 4421163.

It is an arithmetic number, because the mean of its divisors is an integer number (16065013095).

Almost surely, 2^121230233213 is an apocalyptic number.

It is an amenable number.

121230233213 is a deficient number, since it is larger than the sum of its proper divisors (7289871547).

121230233213 is an equidigital number, since it uses as much as digits as its factorization.

121230233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8815647.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121230233213 its reverse (312332032121), we get a palindrome (433562265334).

The spelling of 121230233213 in words is "one hundred twenty-one billion, two hundred thirty million, two hundred thirty-three thousand, two hundred thirteen".