121420121420342 has 8 divisors (see below), whose sum is σ = 182177822786016. Its totient is φ = 60694180491672.

The previous prime is 121420121420249. The next prime is 121420121420371. The reversal of 121420121420342 is 243024121024121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7940099693 + ... + 7940114984.

It is an arithmetic number, because the mean of its divisors is an integer number (22772227848252).

Almost surely, 2^{121420121420342} is an apocalyptic number.

121420121420342 is a deficient number, since it is larger than the sum of its proper divisors (60757701365674).

121420121420342 is a wasteful number, since it uses less digits than its factorization.

121420121420342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15880218502.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 121420121420342 its reverse (243024121024121), we get a palindrome (364444242444463).

The spelling of 121420121420342 in words is "one hundred twenty-one trillion, four hundred twenty billion, one hundred twenty-one million, four hundred twenty thousand, three hundred forty-two".