311322130133 has 8 divisors (see below), whose sum is σ = 355801575360. Its totient is φ = 266843898720.

The previous prime is 311322130127. The next prime is 311322130157. The reversal of 311322130133 is 331031223113.

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

It is not a de Polignac number, because 311322130133 - 2⁶ = 311322130069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311322130099 and 311322130108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311322130033) 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, 335993 + ... + 857633.

It is an arithmetic number, because the mean of its divisors is an integer number (44475196920).

Almost surely, 2^311322130133 is an apocalyptic number.

It is an amenable number.

311322130133 is a deficient number, since it is larger than the sum of its proper divisors (44479445227).

311322130133 is an equidigital number, since it uses as much as digits as its factorization.

311322130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606907.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 311322130133 its reverse (331031223113), we get a palindrome (642353353246).

The spelling of 311322130133 in words is "three hundred eleven billion, three hundred twenty-two million, one hundred thirty thousand, one hundred thirty-three".