20011020102254 has 32 divisors (see below), whose sum is σ = 31201014257280. Its totient is φ = 9617243445792.

The previous prime is 20011020102247. The next prime is 20011020102259. The reversal of 20011020102254 is 45220102011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011020102259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117958337 + ... + 118127859.

It is an arithmetic number, because the mean of its divisors is an integer number (975031695540).

Almost surely, 2^{20011020102254} is an apocalyptic number.

20011020102254 is a deficient number, since it is larger than the sum of its proper divisors (11189994155026).

20011020102254 is a wasteful number, since it uses less digits than its factorization.

20011020102254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188864.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 20011020102254 its reverse (45220102011002), we get a palindrome (65231122113256).

The spelling of 20011020102254 in words is "twenty trillion, eleven billion, twenty million, one hundred two thousand, two hundred fifty-four".