123132243 has 16 divisors (see below), whose sum is σ = 178940160. Its totient is φ = 74858784.

The previous prime is 123132211. The next prime is 123132257. The reversal of 123132243 is 342231321.

It is not a de Polignac number, because 123132243 - 2⁵ = 123132211 is a prime.

It is a super-2 number, since 2×123132243² = 30323098532422098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123132203) 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, 15783 + ... + 22256.

It is an arithmetic number, because the mean of its divisors is an integer number (11183760).

Almost surely, 2^123132243 is an apocalyptic number.

123132243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123132243 is a deficient number, since it is larger than the sum of its proper divisors (55807917).

123132243 is a wasteful number, since it uses less digits than its factorization.

123132243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38138.

The product of its digits is 864, while the sum is 21.

The square root of 123132243 is about 11096.4968796463. The cubic root of 123132243 is about 497.4971497189.

Adding to 123132243 its reverse (342231321), we get a palindrome (465363564).

The spelling of 123132243 in words is "one hundred twenty-three million, one hundred thirty-two thousand, two hundred forty-three".