121032120440042 has 32 divisors (see below), whose sum is σ = 213146320109184. Its totient is φ = 50462405452800.

The previous prime is 121032120440029. The next prime is 121032120440089. The reversal of 121032120440042 is 240044021230121.

It is a junction number, because it is equal to n+sod(n) for n = 121032120439993 and 121032120440020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298462184 + ... + 298867427.

It is an arithmetic number, because the mean of its divisors is an integer number (6660822503412).

Almost surely, 2^{121032120440042} is an apocalyptic number.

121032120440042 is a deficient number, since it is larger than the sum of its proper divisors (92114199669142).

121032120440042 is a wasteful number, since it uses less digits than its factorization.

121032120440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597330014.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 121032120440042 its reverse (240044021230121), we get a palindrome (361076141670163).

The spelling of 121032120440042 in words is "one hundred twenty-one trillion, thirty-two billion, one hundred twenty million, four hundred forty thousand, forty-two".