121120383216542 has 8 divisors (see below), whose sum is σ = 181680727855656. Its totient is φ = 60560140597992.

The previous prime is 121120383216421. The next prime is 121120383216577. The reversal of 121120383216542 is 245612383021121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121120383216542.

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, 22464608 + ... + 27329459.

It is an arithmetic number, because the mean of its divisors is an integer number (22710090981957).

Almost surely, 2^{121120383216542} is an apocalyptic number.

121120383216542 is a deficient number, since it is larger than the sum of its proper divisors (60560344639114).

121120383216542 is a wasteful number, since it uses less digits than its factorization.

121120383216542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51010282.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 121120383216542 in words is "one hundred twenty-one trillion, one hundred twenty billion, three hundred eighty-three million, two hundred sixteen thousand, five hundred forty-two".