101320140 has 24 divisors (see below), whose sum is σ = 283696560. Its totient is φ = 27018688.

The previous prime is 101320139. The next prime is 101320151. The reversal of 101320140 is 41023101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844275 + ... + 844394.

It is an arithmetic number, because the mean of its divisors is an integer number (11820690).

Almost surely, 2^101320140 is an apocalyptic number.

101320140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101320140 is an abundant number, since it is smaller than the sum of its proper divisors (182376420).

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

101320140 is a wasteful number, since it uses less digits than its factorization.

101320140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688681 (or 1688679 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 101320140 is about 10065.7905799793. The cubic root of 101320140 is about 466.1924763779.

Adding to 101320140 its reverse (41023101), we get a palindrome (142343241).

The spelling of 101320140 in words is "one hundred one million, three hundred twenty thousand, one hundred forty".