101200880 has 40 divisors (see below), whose sum is σ = 256684464. Its totient is φ = 36800000.

The previous prime is 101200873. The next prime is 101200919. The reversal of 101200880 is 88002101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×101200880² = 20483236225548800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56621 + ... + 58380.

Almost surely, 2^101200880 is an apocalyptic number.

101200880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200880 is an abundant number, since it is smaller than the sum of its proper divisors (155483584).

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

101200880 is a wasteful number, since it uses less digits than its factorization.

101200880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115025 (or 115019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 101200880 is about 10059.8648102248. The cubic root of 101200880 is about 466.0094922146.

Adding to 101200880 its reverse (88002101), we get a palindrome (189202981).

The spelling of 101200880 in words is "one hundred one million, two hundred thousand, eight hundred eighty".