311013312031223 has 16 divisors (see below), whose sum is σ = 344205431798976. Its totient is φ = 279519362580480.

The previous prime is 311013312031193. The next prime is 311013312031297. The reversal of 311013312031223 is 322130213310113.

It is a cyclic number.

It is not a de Polignac number, because 311013312031223 - 2⁶ = 311013312031159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311013312031192 and 311013312031201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311013312033223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670451498 + ... + 670915223.

It is an arithmetic number, because the mean of its divisors is an integer number (21512839487436).

Almost surely, 2^{311013312031223} is an apocalyptic number.

311013312031223 is a deficient number, since it is larger than the sum of its proper divisors (33192119767753).

311013312031223 is a wasteful number, since it uses less digits than its factorization.

311013312031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341367354.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 311013312031223 its reverse (322130213310113), we get a palindrome (633143525341336).

The spelling of 311013312031223 in words is "three hundred eleven trillion, thirteen billion, three hundred twelve million, thirty-one thousand, two hundred twenty-three".