121303210323021 has 16 divisors (see below), whose sum is σ = 164152652664000. Its totient is φ = 79661302795008.

The previous prime is 121303210322993. The next prime is 121303210323037. The reversal of 121303210323021 is 120323012303121.

121303210323021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 121303210323021 - 2³⁴ = 121286030453837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121303210322982 and 121303210323000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303210323041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31155685 + ... + 34832213.

It is an arithmetic number, because the mean of its divisors is an integer number (10259540791500).

Almost surely, 2^{121303210323021} is an apocalyptic number.

It is an amenable number.

121303210323021 is a deficient number, since it is larger than the sum of its proper divisors (42849442340979).

121303210323021 is a wasteful number, since it uses less digits than its factorization.

121303210323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840748.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 121303210323021 its reverse (120323012303121), we get a palindrome (241626222626142).

The spelling of 121303210323021 in words is "one hundred twenty-one trillion, three hundred three billion, two hundred ten million, three hundred twenty-three thousand, twenty-one".