121230232311 has 4 divisors (see below), whose sum is σ = 161640309752. Its totient is φ = 80820154872.

The previous prime is 121230232301. The next prime is 121230232423. The reversal of 121230232311 is 113232032121.

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

It is not a de Polignac number, because 121230232311 - 2⁶ = 121230232247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230232301) 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, 20205038716 + ... + 20205038721.

It is an arithmetic number, because the mean of its divisors is an integer number (40410077438).

Almost surely, 2^121230232311 is an apocalyptic number.

121230232311 is a deficient number, since it is larger than the sum of its proper divisors (40410077441).

121230232311 is an equidigital number, since it uses as much as digits as its factorization.

121230232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40410077440.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121230232311 its reverse (113232032121), we get a palindrome (234462264432).

The spelling of 121230232311 in words is "one hundred twenty-one billion, two hundred thirty million, two hundred thirty-two thousand, three hundred eleven".