121042342112 has 12 divisors (see below), whose sum is σ = 238302111096. Its totient is φ = 60521171040.

The previous prime is 121042342103. The next prime is 121042342129. The reversal of 121042342112 is 211243240121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1891286564 + ... + 1891286627.

It is an arithmetic number, because the mean of its divisors is an integer number (19858509258).

Almost surely, 2^121042342112 is an apocalyptic number.

It is an amenable number.

121042342112 is a deficient number, since it is larger than the sum of its proper divisors (117259768984).

121042342112 is an equidigital number, since it uses as much as digits as its factorization.

121042342112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782573201 (or 3782573193 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121042342112 its reverse (211243240121), we get a palindrome (332285582233).

The spelling of 121042342112 in words is "one hundred twenty-one billion, forty-two million, three hundred forty-two thousand, one hundred twelve".