311223203132023 has 16 divisors (see below), whose sum is σ = 383063546569536. Its totient is φ = 246229931612160.

The previous prime is 311223203131993. The next prime is 311223203132029. The reversal of 311223203132023 is 320231302322113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 311223203132023 - 2²¹ = 311223201034871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311223203131982 and 311223203132000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311223203132029) 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, 85730986 + ... + 89287447.

It is an arithmetic number, because the mean of its divisors is an integer number (23941471660596).

Almost surely, 2^{311223203132023} is an apocalyptic number.

311223203132023 is a deficient number, since it is larger than the sum of its proper divisors (71840343437513).

311223203132023 is a wasteful number, since it uses less digits than its factorization.

311223203132023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175037994.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 311223203132023 its reverse (320231302322113), we get a palindrome (631454505454136).

The spelling of 311223203132023 in words is "three hundred eleven trillion, two hundred twenty-three billion, two hundred three million, one hundred thirty-two thousand, twenty-three".