101140520 has 64 divisors (see below), whose sum is σ = 248814720. Its totient is φ = 36774144.

The previous prime is 101140513. The next prime is 101140561. The reversal of 101140520 is 25041101.

It is a junction number, because it is equal to n+sod(n) for n = 101140495 and 101140504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33389 + ... + 36291.

It is an arithmetic number, because the mean of its divisors is an integer number (3887730).

Almost surely, 2^101140520 is an apocalyptic number.

101140520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101140520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124407360).

101140520 is an abundant number, since it is smaller than the sum of its proper divisors (147674200).

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

101140520 is a wasteful number, since it uses less digits than its factorization.

101140520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 101140520 is about 10056.8643224417. The cubic root of 101140520 is about 465.9168252764.

Adding to 101140520 its reverse (25041101), we get a palindrome (126181621).

The spelling of 101140520 in words is "one hundred one million, one hundred forty thousand, five hundred twenty".