121001230213 has 8 divisors (see below), whose sum is σ = 121445778168. Its totient is φ = 120557325504.

The previous prime is 121001230169. The next prime is 121001230243. The reversal of 121001230213 is 312032100121.

It can be written as a sum of positive squares in 4 ways, for example, as 2323047204 + 118678183009 = 48198^2 + 344497^2 .

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 121001230213 - 2³³ = 112411295621 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 (121001230243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217731 + ... + 537967.

It is an arithmetic number, because the mean of its divisors is an integer number (15180722271).

Almost surely, 2^121001230213 is an apocalyptic number.

It is an amenable number.

121001230213 is a deficient number, since it is larger than the sum of its proper divisors (444547955).

121001230213 is a wasteful number, since it uses less digits than its factorization.

121001230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321623.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121001230213 its reverse (312032100121), we get a palindrome (433033330334).

The spelling of 121001230213 in words is "one hundred twenty-one billion, one million, two hundred thirty thousand, two hundred thirteen".