121828326243 has 32 divisors (see below), whose sum is σ = 181903122240. Its totient is φ = 72010874880.

The previous prime is 121828326233. The next prime is 121828326251. The reversal of 121828326243 is 342623828121.

It is not a de Polignac number, because 121828326243 - 2⁸ = 121828325987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121828326195 and 121828326204.

It is not an unprimeable number, because it can be changed into a prime (121828326203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60778 + ... + 497343.

It is an arithmetic number, because the mean of its divisors is an integer number (5684472570).

Almost surely, 2^121828326243 is an apocalyptic number.

121828326243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121828326243 is a deficient number, since it is larger than the sum of its proper divisors (60074795997).

121828326243 is a wasteful number, since it uses less digits than its factorization.

121828326243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558359.

The product of its digits is 221184, while the sum is 42.

The spelling of 121828326243 in words is "one hundred twenty-one billion, eight hundred twenty-eight million, three hundred twenty-six thousand, two hundred forty-three".