311223444103011 has 32 divisors (see below), whose sum is σ = 453272490639360. Its totient is φ = 188377044509600.

The previous prime is 311223444103007. The next prime is 311223444103027. The reversal of 311223444103011 is 110301444322113.

It is a cyclic number.

It is not a de Polignac number, because 311223444103011 - 2² = 311223444103007 is a prime.

It is a super-2 number, since 2×311223444103011² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311223444103011.

It is not an unprimeable number, because it can be changed into a prime (311223444103811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285490366 + ... + 286578428.

It is an arithmetic number, because the mean of its divisors is an integer number (14164765332480).

Almost surely, 2^{311223444103011} is an apocalyptic number.

311223444103011 is a deficient number, since it is larger than the sum of its proper divisors (142049046536349).

311223444103011 is a wasteful number, since it uses less digits than its factorization.

311223444103011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099247.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 311223444103011 its reverse (110301444322113), we get a palindrome (421524888425124).

The spelling of 311223444103011 in words is "three hundred eleven trillion, two hundred twenty-three billion, four hundred forty-four million, one hundred three thousand, eleven".