20010120111983 has 8 divisors (see below), whose sum is σ = 20235050298000. Its totient is φ = 19785192090048.

The previous prime is 20010120111979. The next prime is 20010120112007. The reversal of 20010120111983 is 38911102101002.

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 20010120111983 - 2² = 20010120111979 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 (20010120611983) 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, 24568160 + ... + 25369562.

It is an arithmetic number, because the mean of its divisors is an integer number (2529381287250).

Almost surely, 2^{20010120111983} is an apocalyptic number.

20010120111983 is a deficient number, since it is larger than the sum of its proper divisors (224930186017).

20010120111983 is an equidigital number, since it uses as much as digits as its factorization.

20010120111983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082041.

The product of its (nonzero) digits is 864, while the sum is 29.

Adding to 20010120111983 its reverse (38911102101002), we get a palindrome (58921222212985).

The spelling of 20010120111983 in words is "twenty trillion, ten billion, one hundred twenty million, one hundred eleven thousand, nine hundred eighty-three".