121200010323 has 16 divisors (see below), whose sum is σ = 185492225280. Its totient is φ = 68954713056.

The previous prime is 121200010303. The next prime is 121200010331. The reversal of 121200010323 is 323010002121.

It is not a de Polignac number, because 121200010323 - 2⁸ = 121200010067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121200010303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12596565 + ... + 12606182.

It is an arithmetic number, because the mean of its divisors is an integer number (11593264080).

Almost surely, 2^121200010323 is an apocalyptic number.

121200010323 is a deficient number, since it is larger than the sum of its proper divisors (64292214957).

121200010323 is a wasteful number, since it uses less digits than its factorization.

121200010323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25202986.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121200010323 its reverse (323010002121), we get a palindrome (444210012444).

The spelling of 121200010323 in words is "one hundred twenty-one billion, two hundred million, ten thousand, three hundred twenty-three".