311234404201 has 4 divisors (see below), whose sum is σ = 355696461952. Its totient is φ = 266772346452.

The previous prime is 311234404199. The next prime is 311234404207. The reversal of 311234404201 is 102404432113.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102404432113 = 1249 ⋅81989137.

It is a cyclic number.

It is not a de Polignac number, because 311234404201 - 2¹ = 311234404199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311234404207) 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, 22231028865 + ... + 22231028878.

It is an arithmetic number, because the mean of its divisors is an integer number (88924115488).

Almost surely, 2^311234404201 is an apocalyptic number.

It is an amenable number.

311234404201 is a deficient number, since it is larger than the sum of its proper divisors (44462057751).

311234404201 is an equidigital number, since it uses as much as digits as its factorization.

311234404201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44462057750.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 311234404201 its reverse (102404432113), we get a palindrome (413638836314).

The spelling of 311234404201 in words is "three hundred eleven billion, two hundred thirty-four million, four hundred four thousand, two hundred one".