121211020130323 has 4 divisors (see below), whose sum is σ = 121258423738720. Its totient is φ = 121163616521928.

The previous prime is 121211020130297. The next prime is 121211020130329. The reversal of 121211020130323 is 323031020112121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121211020130323 is a prime.

It is a super-2 number, since 2×121211020130323² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121211020130294 and 121211020130303.

It is not an unprimeable number, because it can be changed into a prime (121211020130329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23701800363 + ... + 23701805476.

It is an arithmetic number, because the mean of its divisors is an integer number (30314605934680).

Almost surely, 2^{121211020130323} is an apocalyptic number.

121211020130323 is a deficient number, since it is larger than the sum of its proper divisors (47403608397).

121211020130323 is an equidigital number, since it uses as much as digits as its factorization.

121211020130323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47403608396.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121211020130323 its reverse (323031020112121), we get a palindrome (444242040242444).

The spelling of 121211020130323 in words is "one hundred twenty-one trillion, two hundred eleven billion, twenty million, one hundred thirty thousand, three hundred twenty-three".