121131232011323 has 4 divisors (see below), whose sum is σ = 121131293663568. Its totient is φ = 121131170359080.

The previous prime is 121131232011287. The next prime is 121131232011421. The reversal of 121131232011323 is 323110232131121.

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

It is a cyclic number.

It is not a de Polignac number, because 121131232011323 - 2³² = 121126937044027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121131232011292 and 121131232011301.

It is not an unprimeable number, because it can be changed into a prime (121131232014323) 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, 27778568 + ... + 31841973.

It is an arithmetic number, because the mean of its divisors is an integer number (30282823415892).

Almost surely, 2^{121131232011323} is an apocalyptic number.

121131232011323 is a deficient number, since it is larger than the sum of its proper divisors (61652245).

121131232011323 is an equidigital number, since it uses as much as digits as its factorization.

121131232011323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61652244.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 121131232011323 its reverse (323110232131121), we get a palindrome (444241464142444).

The spelling of 121131232011323 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, two hundred thirty-two million, eleven thousand, three hundred twenty-three".