101240520 has 64 divisors (see below), whose sum is σ = 304560000. Its totient is φ = 26923008.

The previous prime is 101240509. The next prime is 101240527. The reversal of 101240520 is 25042101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101240520.

It is not an unprimeable number, because it can be changed into a prime (101240527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52941 + ... + 54819.

It is an arithmetic number, because the mean of its divisors is an integer number (4758750).

Almost surely, 2^101240520 is an apocalyptic number.

101240520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101240520 is an abundant number, since it is smaller than the sum of its proper divisors (203319480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101240520 is a wasteful number, since it uses less digits than its factorization.

101240520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 101240520 is about 10061.8348227349. The cubic root of 101240520 is about 466.0703289876.

Adding to 101240520 its reverse (25042101), we get a palindrome (126282621).

The spelling of 101240520 in words is "one hundred one million, two hundred forty thousand, five hundred twenty".