121040310040442 has 32 divisors (see below), whose sum is σ = 202270546396800. Its totient is φ = 53937962624448.

The previous prime is 121040310040423. The next prime is 121040310040469. The reversal of 121040310040442 is 244040013040121.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107381213 + ... + 108502559.

It is an arithmetic number, because the mean of its divisors is an integer number (6320954574900).

Almost surely, 2^{121040310040442} is an apocalyptic number.

121040310040442 is a deficient number, since it is larger than the sum of its proper divisors (81230236356358).

121040310040442 is a wasteful number, since it uses less digits than its factorization.

121040310040442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264550.

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

Adding to 121040310040442 its reverse (244040013040121), we get a palindrome (365080323080563).

The spelling of 121040310040442 in words is "one hundred twenty-one trillion, forty billion, three hundred ten million, forty thousand, four hundred forty-two".