123455112245 has 4 divisors (see below), whose sum is σ = 148146134700. Its totient is φ = 98764089792.

The previous prime is 123455112229. The next prime is 123455112311. The reversal of 123455112245 is 542211554321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40690151524 + 82764960721 = 201718^2 + 287689^2 .

It is a cyclic number.

It is not a de Polignac number, because 123455112245 - 2⁴ = 123455112229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12345511220 + ... + 12345511229.

It is an arithmetic number, because the mean of its divisors is an integer number (37036533675).

Almost surely, 2^123455112245 is an apocalyptic number.

It is an amenable number.

123455112245 is a deficient number, since it is larger than the sum of its proper divisors (24691022455).

123455112245 is an equidigital number, since it uses as much as digits as its factorization.

123455112245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24691022454.

The product of its digits is 48000, while the sum is 35.

Adding to 123455112245 its reverse (542211554321), we get a palindrome (665666666566).

The spelling of 123455112245 in words is "one hundred twenty-three billion, four hundred fifty-five million, one hundred twelve thousand, two hundred forty-five".