121245303435042 has 16 divisors (see below), whose sum is σ = 245412180447840. Its totient is φ = 39928172215392.

The previous prime is 121245303435029. The next prime is 121245303435073. The reversal of 121245303435042 is 240534303542121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121732231867 + ... + 121732232862.

It is an arithmetic number, because the mean of its divisors is an integer number (15338261277990).

Almost surely, 2^{121245303435042} is an apocalyptic number.

121245303435042 is an abundant number, since it is smaller than the sum of its proper divisors (124166877012798).

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

121245303435042 is a wasteful number, since it uses less digits than its factorization.

121245303435042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243464464817.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 121245303435042 its reverse (240534303542121), we get a palindrome (361779606977163).

The spelling of 121245303435042 in words is "one hundred twenty-one trillion, two hundred forty-five billion, three hundred three million, four hundred thirty-five thousand, forty-two".