123225443215 has 16 divisors (see below), whose sum is σ = 173116722240. Its totient is φ = 82436532480.

The previous prime is 123225443189. The next prime is 123225443219. The reversal of 123225443215 is 512344522321.

It is not a de Polignac number, because 123225443215 - 2²¹ = 123223346063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123225443219) 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, 42934260 + ... + 42937129.

It is an arithmetic number, because the mean of its divisors is an integer number (10819795140).

Almost surely, 2^123225443215 is an apocalyptic number.

123225443215 is a deficient number, since it is larger than the sum of its proper divisors (49891279025).

123225443215 is an equidigital number, since it uses as much as digits as its factorization.

123225443215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85871442.

The product of its digits is 57600, while the sum is 34.

Adding to 123225443215 its reverse (512344522321), we get a palindrome (635569965536).

The spelling of 123225443215 in words is "one hundred twenty-three billion, two hundred twenty-five million, four hundred forty-three thousand, two hundred fifteen".