2311011233321 has 4 divisors (see below), whose sum is σ = 2641155695232. Its totient is φ = 1980866771412.

The previous prime is 2311011233317. The next prime is 2311011233347. The reversal of 2311011233321 is 1233321101132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2311011233321 - 2² = 2311011233317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311011238321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165072230945 + ... + 165072230958.

It is an arithmetic number, because the mean of its divisors is an integer number (660288923808).

Almost surely, 2^{2311011233321} is an apocalyptic number.

It is an amenable number.

2311011233321 is a deficient number, since it is larger than the sum of its proper divisors (330144461911).

2311011233321 is an equidigital number, since it uses as much as digits as its factorization.

2311011233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330144461910.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2311011233321 its reverse (1233321101132), we get a palindrome (3544332334453).

The spelling of 2311011233321 in words is "two trillion, three hundred eleven billion, eleven million, two hundred thirty-three thousand, three hundred twenty-one".