2111503223 has 2 divisors, whose sum is σ = 2111503224. Its totient is φ = 2111503222.

The previous prime is 2111503213. The next prime is 2111503243. The reversal of 2111503223 is 3223051112.

It is an a-pointer prime, because the next prime (2111503243) can be obtained adding 2111503223 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111503223 - 2²² = 2107308919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111503195 and 2111503204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111503213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055751611 + 1055751612.

It is an arithmetic number, because the mean of its divisors is an integer number (1055751612).

Almost surely, 2^2111503223 is an apocalyptic number.

2111503223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111503223 is an equidigital number, since it uses as much as digits as its factorization.

2111503223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2111503223 is about 45951.0959934581. The cubic root of 2111503223 is about 1282.9131288271.

Adding to 2111503223 its reverse (3223051112), we get a palindrome (5334554335).

The spelling of 2111503223 in words is "two billion, one hundred eleven million, five hundred three thousand, two hundred twenty-three".