23781203 has 2 divisors, whose sum is σ = 23781204. Its totient is φ = 23781202.

The previous prime is 23781169. The next prime is 23781221. The reversal of 23781203 is 30218732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23781203 - 2⁶ = 23781139 is a prime.

It is a super-2 number, since 2×23781203² = 1131091232254418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23781223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11890601 + 11890602.

It is an arithmetic number, because the mean of its divisors is an integer number (11890602).

Almost surely, 2^23781203 is an apocalyptic number.

23781203 is a deficient number, since it is larger than the sum of its proper divisors (1).

23781203 is an equidigital number, since it uses as much as digits as its factorization.

23781203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 23781203 is about 4876.5974818515. The cubic root of 23781203 is about 287.5706815504.

Adding to 23781203 its reverse (30218732), we get a palindrome (53999935).

The spelling of 23781203 in words is "twenty-three million, seven hundred eighty-one thousand, two hundred three".