121322020413 has 16 divisors (see below), whose sum is σ = 177171466752. Its totient is φ = 73235550000.

The previous prime is 121322020403. The next prime is 121322020433. The reversal of 121322020413 is 314020223121.

It is not a de Polignac number, because 121322020413 - 2⁵ = 121322020381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121322020413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121322020403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7315273 + ... + 7331838.

It is an arithmetic number, because the mean of its divisors is an integer number (11073216672).

Almost surely, 2^121322020413 is an apocalyptic number.

It is an amenable number.

121322020413 is a deficient number, since it is larger than the sum of its proper divisors (55849446339).

121322020413 is a wasteful number, since it uses less digits than its factorization.

121322020413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14647376.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121322020413 its reverse (314020223121), we get a palindrome (435342243534).

The spelling of 121322020413 in words is "one hundred twenty-one billion, three hundred twenty-two million, twenty thousand, four hundred thirteen".