121231230231323 has 16 divisors (see below), whose sum is σ = 122154230016000. Its totient is φ = 120311048498400.

The previous prime is 121231230231277. The next prime is 121231230231341. The reversal of 121231230231323 is 323132032132121.

It is a cyclic number.

It is not a de Polignac number, because 121231230231323 - 2³⁰ = 121230156489499 is a prime.

It is a super-2 number, since 2×121231230231323² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121231230231373) 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, 1485435788 + ... + 1485517398.

It is an arithmetic number, because the mean of its divisors is an integer number (7634639376000).

Almost surely, 2^{121231230231323} is an apocalyptic number.

121231230231323 is a deficient number, since it is larger than the sum of its proper divisors (922999784677).

121231230231323 is a wasteful number, since it uses less digits than its factorization.

121231230231323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98738.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 121231230231323 its reverse (323132032132121), we get a palindrome (444363262363444).

The spelling of 121231230231323 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, two hundred thirty million, two hundred thirty-one thousand, three hundred twenty-three".