101380681 has 4 divisors (see below), whose sum is σ = 102328272. Its totient is φ = 100433092.

The previous prime is 101380663. The next prime is 101380691. The reversal of 101380681 is 186083101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 186083101 = 37 ⋅5029273.

It is a cyclic number.

It is not a de Polignac number, because 101380681 - 2⁵ = 101380649 is a prime.

It is a super-2 number, since 2×101380681² = 20556084960047522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101380651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473635 + ... + 473848.

It is an arithmetic number, because the mean of its divisors is an integer number (25582068).

Almost surely, 2^101380681 is an apocalyptic number.

It is an amenable number.

101380681 is a deficient number, since it is larger than the sum of its proper divisors (947591).

101380681 is an equidigital number, since it uses as much as digits as its factorization.

101380681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947590.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 101380681 is about 10068.7973959158. The cubic root of 101380681 is about 466.2853112909.

The spelling of 101380681 in words is "one hundred one million, three hundred eighty thousand, six hundred eighty-one".