311120012201 has 4 divisors (see below), whose sum is σ = 311361378900. Its totient is φ = 310878645504.

The previous prime is 311120012131. The next prime is 311120012227. The reversal of 311120012201 is 102210021113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102210021113 = 211 ⋅484407683.

It can be written as a sum of positive squares in 2 ways, for example, as 278113843225 + 33006168976 = 527365^2 + 181676^2 .

It is a cyclic number.

It is not a de Polignac number, because 311120012201 - 2¹⁸ = 311119750057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311120002201) 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, 120681416 + ... + 120683993.

It is an arithmetic number, because the mean of its divisors is an integer number (77840344725).

Almost surely, 2^311120012201 is an apocalyptic number.

It is an amenable number.

311120012201 is a deficient number, since it is larger than the sum of its proper divisors (241366699).

311120012201 is a wasteful number, since it uses less digits than its factorization.

311120012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241366698.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 311120012201 its reverse (102210021113), we get a palindrome (413330033314).

The spelling of 311120012201 in words is "three hundred eleven billion, one hundred twenty million, twelve thousand, two hundred one".