11211340023 has 12 divisors (see below), whose sum is σ = 17439862440. Its totient is φ = 6899286096.

The previous prime is 11211340009. The next prime is 11211340027. The reversal of 11211340023 is 32004311211.

It is not a de Polignac number, because 11211340023 - 2¹⁸ = 11211077879 is a prime.

It is a super-2 number, since 2×11211340023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11211339978 and 11211340005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211340027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47911593 + ... + 47911826.

It is an arithmetic number, because the mean of its divisors is an integer number (1453321870).

Almost surely, 2^11211340023 is an apocalyptic number.

11211340023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11211340023 is a deficient number, since it is larger than the sum of its proper divisors (6228522417).

11211340023 is a wasteful number, since it uses less digits than its factorization.

11211340023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95823438 (or 95823435 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11211340023 its reverse (32004311211), we get a palindrome (43215651234).

The spelling of 11211340023 in words is "eleven billion, two hundred eleven million, three hundred forty thousand, twenty-three".