1123023321211 has 4 divisors (see below), whose sum is σ = 1225116350424. Its totient is φ = 1020930292000.

The previous prime is 1123023321209. The next prime is 1123023321283. The reversal of 1123023321211 is 1121233203211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123023321211 - 2¹ = 1123023321209 is a prime.

It is a super-2 number, since 2×1123023321211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123023328211) 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, 51046514590 + ... + 51046514611.

It is an arithmetic number, because the mean of its divisors is an integer number (306279087606).

Almost surely, 2^{1123023321211} is an apocalyptic number.

1123023321211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123023321211 is a deficient number, since it is larger than the sum of its proper divisors (102093029213).

1123023321211 is a wasteful number, since it uses less digits than its factorization.

1123023321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102093029212.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1123023321211 its reverse (1121233203211), we get a palindrome (2244256524422).

The spelling of 1123023321211 in words is "one trillion, one hundred twenty-three billion, twenty-three million, three hundred twenty-one thousand, two hundred eleven".