20100101001223 has 16 divisors (see below), whose sum is σ = 20373740029440. Its totient is φ = 19827230826816.

The previous prime is 20100101001193. The next prime is 20100101001301. The reversal of 20100101001223 is 32210010100102.

It is a cyclic number.

It is not a de Polignac number, because 20100101001223 - 2⁴¹ = 17901077745671 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 (20100101004223) 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, 172862338 + ... + 172978576.

It is an arithmetic number, because the mean of its divisors is an integer number (1273358751840).

Almost surely, 2^{20100101001223} is an apocalyptic number.

20100101001223 is a deficient number, since it is larger than the sum of its proper divisors (273639028217).

20100101001223 is a wasteful number, since it uses less digits than its factorization.

20100101001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119526.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20100101001223 its reverse (32210010100102), we get a palindrome (52310111101325).

The spelling of 20100101001223 in words is "twenty trillion, one hundred billion, one hundred one million, one thousand, two hundred twenty-three".