311332000132123 has 4 divisors (see below), whose sum is σ = 311519211198208. Its totient is φ = 311144789066040.

The previous prime is 311332000132103. The next prime is 311332000132157. The reversal of 311332000132123 is 321231000233113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311332000132123 is a prime.

It is a super-2 number, since 2×311332000132123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311332000132103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93605530548 + ... + 93605533873.

It is an arithmetic number, because the mean of its divisors is an integer number (77879802799552).

Almost surely, 2^{311332000132123} is an apocalyptic number.

311332000132123 is a deficient number, since it is larger than the sum of its proper divisors (187211066085).

311332000132123 is a wasteful number, since it uses less digits than its factorization.

311332000132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187211066084.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 311332000132123 its reverse (321231000233113), we get a palindrome (632563000365236).

The spelling of 311332000132123 in words is "three hundred eleven trillion, three hundred thirty-two billion, one hundred thirty-two thousand, one hundred twenty-three".