20101220119973 has 8 divisors (see below), whose sum is σ = 20749706343936. Its totient is φ = 19452737631600.

The previous prime is 20101220119969. The next prime is 20101220120011. The reversal of 20101220119973 is 37991102210102.

It is a happy number.

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 20101220119973 - 2² = 20101220119969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101220119073) 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, 13584563 + ... + 14991423.

It is an arithmetic number, because the mean of its divisors is an integer number (2593713292992).

Almost surely, 2^{20101220119973} is an apocalyptic number.

It is an amenable number.

20101220119973 is a deficient number, since it is larger than the sum of its proper divisors (648486223963).

20101220119973 is a wasteful number, since it uses less digits than its factorization.

20101220119973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867795.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 20101220119973 in words is "twenty trillion, one hundred one billion, two hundred twenty million, one hundred nineteen thousand, nine hundred seventy-three".