101973021 has 8 divisors (see below), whose sum is σ = 143961984. Its totient is φ = 63983040.

The previous prime is 101972989. The next prime is 101973037. The reversal of 101973021 is 120379101.

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

It is not a de Polignac number, because 101973021 - 2⁵ = 101972989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101972982 and 101973000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101973061) 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, 999685 + ... + 999786.

It is an arithmetic number, because the mean of its divisors is an integer number (17995248).

Almost surely, 2^101973021 is an apocalyptic number.

It is an amenable number.

101973021 is a deficient number, since it is larger than the sum of its proper divisors (41988963).

101973021 is a wasteful number, since it uses less digits than its factorization.

101973021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999491.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 101973021 is about 10098.1691905018. The cubic root of 101973021 is about 467.1916748381.

The spelling of 101973021 in words is "one hundred one million, nine hundred seventy-three thousand, twenty-one".