1123425015 has 16 divisors (see below), whose sum is σ = 1806798048. Its totient is φ = 596054016.

The previous prime is 1123425013. The next prime is 1123425019. The reversal of 1123425015 is 5105243211.

It is a happy number.

It is not a de Polignac number, because 1123425015 - 2¹ = 1123425013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123425013) 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, 191134 + ... + 196923.

It is an arithmetic number, because the mean of its divisors is an integer number (112924878).

Almost surely, 2^1123425015 is an apocalyptic number.

1123425015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123425015 is a deficient number, since it is larger than the sum of its proper divisors (683373033).

1123425015 is a wasteful number, since it uses less digits than its factorization.

1123425015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388258.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1123425015 is about 33517.5329491894. The cubic root of 1123425015 is about 1039.5563365863.

Adding to 1123425015 its reverse (5105243211), we get a palindrome (6228668226).

The spelling of 1123425015 in words is "one billion, one hundred twenty-three million, four hundred twenty-five thousand, fifteen".