101120550 has 48 divisors (see below), whose sum is σ = 251568720. Its totient is φ = 26880640.

The previous prime is 101120533. The next prime is 101120561. The reversal of 101120550 is 55021101.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57484 + ... + 59216.

It is an arithmetic number, because the mean of its divisors is an integer number (5241015).

Almost surely, 2^101120550 is an apocalyptic number.

101120550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101120550 is an abundant number, since it is smaller than the sum of its proper divisors (150448170).

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

101120550 is a wasteful number, since it uses less digits than its factorization.

101120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137 (or 2132 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 101120550 is about 10055.8714192257. The cubic root of 101120550 is about 465.8861584660.

Adding to 101120550 its reverse (55021101), we get a palindrome (156141651).

The spelling of 101120550 in words is "one hundred one million, one hundred twenty thousand, five hundred fifty".