121001322311 has 12 divisors (see below), whose sum is σ = 126678200712. Its totient is φ = 115569092496.

The previous prime is 121001322307. The next prime is 121001322319. The reversal of 121001322311 is 113223100121.

It is not a de Polignac number, because 121001322311 - 2² = 121001322307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121001322311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001322319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189200 + ... + 527066.

It is an arithmetic number, because the mean of its divisors is an integer number (10556516726).

Almost surely, 2^121001322311 is an apocalyptic number.

121001322311 is a deficient number, since it is larger than the sum of its proper divisors (5676878401).

121001322311 is an equidigital number, since it uses as much as digits as its factorization.

121001322311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338590 (or 338567 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121001322311 its reverse (113223100121), we get a palindrome (234224422432).

The spelling of 121001322311 in words is "one hundred twenty-one billion, one million, three hundred twenty-two thousand, three hundred eleven".