121131232010311 has 4 divisors (see below), whose sum is σ = 121518232751872. Its totient is φ = 120744231268752.

The previous prime is 121131232010303. The next prime is 121131232010339. The reversal of 121131232010311 is 113010232131121.

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 121131232010311 - 2³ = 121131232010303 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 (121131232040311) 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, 193500370311 + ... + 193500370936.

It is an arithmetic number, because the mean of its divisors is an integer number (30379558187968).

Almost surely, 2^{121131232010311} is an apocalyptic number.

121131232010311 is a deficient number, since it is larger than the sum of its proper divisors (387000741561).

121131232010311 is an equidigital number, since it uses as much as digits as its factorization.

121131232010311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387000741560.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121131232010311 its reverse (113010232131121), we get a palindrome (234141464141432).

The spelling of 121131232010311 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, two hundred thirty-two million, ten thousand, three hundred eleven".