121100423442 has 8 divisors (see below), whose sum is σ = 242200846896. Its totient is φ = 40366807812.

The previous prime is 121100423387. The next prime is 121100423447. The reversal of 121100423442 is 244324001121.

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

121100423442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (121100423447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10091701948 + ... + 10091701959.

It is an arithmetic number, because the mean of its divisors is an integer number (30275105862).

Almost surely, 2^121100423442 is an apocalyptic number.

121100423442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121100423442 is a wasteful number, since it uses less digits than its factorization.

121100423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20183403912.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 121100423442 its reverse (244324001121), we get a palindrome (365424424563).

The spelling of 121100423442 in words is "one hundred twenty-one billion, one hundred million, four hundred twenty-three thousand, four hundred forty-two".