2211320023311 has 16 divisors (see below), whose sum is σ = 3417090098688. Its totient is φ = 1245814096800.

The previous prime is 2211320023301. The next prime is 2211320023331. The reversal of 2211320023311 is 1133200231122.

It is not a de Polignac number, because 2211320023311 - 2⁶ = 2211320023247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211320023301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741554520 + ... + 741557501.

It is an arithmetic number, because the mean of its divisors is an integer number (213568131168).

Almost surely, 2^{2211320023311} is an apocalyptic number.

2211320023311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2211320023311 is a deficient number, since it is larger than the sum of its proper divisors (1205770075377).

2211320023311 is a wasteful number, since it uses less digits than its factorization.

2211320023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483112102.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2211320023311 its reverse (1133200231122), we get a palindrome (3344520254433).

The spelling of 2211320023311 in words is "two trillion, two hundred eleven billion, three hundred twenty million, twenty-three thousand, three hundred eleven".