5123112122 has 4 divisors (see below), whose sum is σ = 7684668186. Its totient is φ = 2561556060.

The previous prime is 5123112121. The next prime is 5123112143. The reversal of 5123112122 is 2212113215.

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

It can be written as a sum of positive squares in only one way, i.e., 4823441401 + 299670721 = 69451^2 + 17311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5123112094 and 5123112103.

It is not an unprimeable number, because it can be changed into a prime (5123112121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280778029 + ... + 1280778032.

Almost surely, 2^5123112122 is an apocalyptic number.

5123112122 is a deficient number, since it is larger than the sum of its proper divisors (2561556064).

5123112122 is a wasteful number, since it uses less digits than its factorization.

5123112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561556063.

The product of its digits is 240, while the sum is 20.

The square root of 5123112122 is about 71575.9185899839. The cubic root of 5123112122 is about 1723.8968929405.

Adding to 5123112122 its reverse (2212113215), we get a palindrome (7335225337).

The spelling of 5123112122 in words is "five billion, one hundred twenty-three million, one hundred twelve thousand, one hundred twenty-two".