311123123133 has 8 divisors (see below), whose sum is σ = 414879997728. Its totient is φ = 207390831984.

The previous prime is 311123123089. The next prime is 311123123147. The reversal of 311123123133 is 331321321113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311123123133 - 2²⁸ = 310854687677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311123123173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6116310 + ... + 6166967.

It is an arithmetic number, because the mean of its divisors is an integer number (51859999716).

Almost surely, 2^311123123133 is an apocalyptic number.

It is an amenable number.

311123123133 is a deficient number, since it is larger than the sum of its proper divisors (103756874595).

311123123133 is a wasteful number, since it uses less digits than its factorization.

311123123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12291723.

The product of its digits is 972, while the sum is 24.

Adding to 311123123133 its reverse (331321321113), we get a palindrome (642444444246).

The spelling of 311123123133 in words is "three hundred eleven billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty-three".