121078368059428 has 24 divisors (see below), whose sum is σ = 231311992938488. Its totient is φ = 55116812434176.

The previous prime is 121078368059359. The next prime is 121078368059477. The reversal of 121078368059428 is 824950863870121.

It can be written as a sum of positive squares in 4 ways, for example, as 211607360064 + 120866760699364 = 460008^2 + 10993942^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121078368059428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15948147951 + ... + 15948155542.

It is a 1-persistent number, because it is pandigital, but 2⋅121078368059428 = 242156736118856 is not.

Almost surely, 2^{121078368059428} is an apocalyptic number.

It is an amenable number.

121078368059428 is a deficient number, since it is larger than the sum of its proper divisors (110233624879060).

121078368059428 is a wasteful number, since it uses less digits than its factorization.

121078368059428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31896303583 (or 31896303581 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 121078368059428 in words is "one hundred twenty-one trillion, seventy-eight billion, three hundred sixty-eight million, fifty-nine thousand, four hundred twenty-eight".