311120321211321 has 4 divisors (see below), whose sum is σ = 414827094948432. Its totient is φ = 207413547474212.

The previous prime is 311120321211313. The next prime is 311120321211331. The reversal of 311120321211321 is 123112123021113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311120321211321 - 2³ = 311120321211313 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311120321211291 and 311120321211300.

It is not an unprimeable number, because it can be changed into a prime (311120321211331) 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, 51853386868551 + ... + 51853386868556.

It is an arithmetic number, because the mean of its divisors is an integer number (103706773737108).

Almost surely, 2^{311120321211321} is an apocalyptic number.

It is an amenable number.

311120321211321 is a deficient number, since it is larger than the sum of its proper divisors (103706773737111).

311120321211321 is a wasteful number, since it uses less digits than its factorization.

311120321211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103706773737110.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 311120321211321 its reverse (123112123021113), we get a palindrome (434232444232434).

The spelling of 311120321211321 in words is "three hundred eleven trillion, one hundred twenty billion, three hundred twenty-one million, two hundred eleven thousand, three hundred twenty-one".