311133013321 has 32 divisors (see below), whose sum is σ = 347296320000. Its totient is φ = 276901701120.

The previous prime is 311133013259. The next prime is 311133013333. The reversal of 311133013321 is 123310331113.

It is a cyclic number.

It is not a de Polignac number, because 311133013321 - 2¹⁵ = 311132980553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311133013292 and 311133013301.

It is not an unprimeable number, because it can be changed into a prime (311133013351) 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, 15794140 + ... + 15813826.

It is an arithmetic number, because the mean of its divisors is an integer number (10853010000).

Almost surely, 2^311133013321 is an apocalyptic number.

It is an amenable number.

311133013321 is a deficient number, since it is larger than the sum of its proper divisors (36163306679).

311133013321 is a wasteful number, since it uses less digits than its factorization.

311133013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20089.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 311133013321 its reverse (123310331113), we get a palindrome (434443344434).

The spelling of 311133013321 in words is "three hundred eleven billion, one hundred thirty-three million, thirteen thousand, three hundred twenty-one".