311332012123 has 16 divisors (see below), whose sum is σ = 351884685312. Its totient is φ = 272888352000.

The previous prime is 311332012109. The next prime is 311332012129. The reversal of 311332012123 is 321210233113.

It is not a de Polignac number, because 311332012123 - 2⁹ = 311332011611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311332012094 and 311332012103.

It is not an unprimeable number, because it can be changed into a prime (311332012129) 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, 1592086 + ... + 1776907.

It is an arithmetic number, because the mean of its divisors is an integer number (21992792832).

Almost surely, 2^311332012123 is an apocalyptic number.

311332012123 is a deficient number, since it is larger than the sum of its proper divisors (40552673189).

311332012123 is a wasteful number, since it uses less digits than its factorization.

311332012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369306.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 311332012123 its reverse (321210233113), we get a palindrome (632542245236).

The spelling of 311332012123 in words is "three hundred eleven billion, three hundred thirty-two million, twelve thousand, one hundred twenty-three".