101383921 has 8 divisors (see below), whose sum is σ = 102312000. Its totient is φ = 100459440.

The previous prime is 101383907. The next prime is 101383927. The reversal of 101383921 is 129383101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101383921 - 2⁹ = 101383409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101383921.

It is not an unprimeable number, because it can be changed into a prime (101383927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120420 + ... + 121258.

It is an arithmetic number, because the mean of its divisors is an integer number (12789000).

Almost surely, 2^101383921 is an apocalyptic number.

It is an amenable number.

101383921 is a deficient number, since it is larger than the sum of its proper divisors (928079).

101383921 is an equidigital number, since it uses as much as digits as its factorization.

101383921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 101383921 is about 10068.9582877277. The cubic root of 101383921 is about 466.2902785368.

The spelling of 101383921 in words is "one hundred one million, three hundred eighty-three thousand, nine hundred twenty-one".