20113213101 has 16 divisors (see below), whose sum is σ = 27086400000. Its totient is φ = 13275079088.

The previous prime is 20113213079. The next prime is 20113213129. The reversal of 20113213101 is 10131231102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20113213101 - 2⁶ = 20113213037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113213201) 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, 39400 + ... + 204398.

It is an arithmetic number, because the mean of its divisors is an integer number (1692900000).

Almost surely, 2^20113213101 is an apocalyptic number.

It is an amenable number.

20113213101 is a deficient number, since it is larger than the sum of its proper divisors (6973186899).

20113213101 is a wasteful number, since it uses less digits than its factorization.

20113213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165408.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20113213101 its reverse (10131231102), we get a palindrome (30244444203).

The spelling of 20113213101 in words is "twenty billion, one hundred thirteen million, two hundred thirteen thousand, one hundred one".