520124101 has 4 divisors (see below), whose sum is σ = 594427552. Its totient is φ = 445820652.

The previous prime is 520124083. The next prime is 520124119. The reversal of 520124101 is 101421025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (520124083) and next prime (520124119).

It is a cyclic number.

It is not a de Polignac number, because 520124101 - 2⁷ = 520123973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520124131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37151715 + ... + 37151728.

It is an arithmetic number, because the mean of its divisors is an integer number (148606888).

Almost surely, 2^520124101 is an apocalyptic number.

It is an amenable number.

520124101 is a deficient number, since it is larger than the sum of its proper divisors (74303451).

520124101 is an equidigital number, since it uses as much as digits as its factorization.

520124101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74303450.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 520124101 is about 22806.2294340823. The cubic root of 520124101 is about 804.2091179227.

Adding to 520124101 its reverse (101421025), we get a palindrome (621545126).

The spelling of 520124101 in words is "five hundred twenty million, one hundred twenty-four thousand, one hundred one".