20111230101 has 4 divisors (see below), whose sum is σ = 26814973472. Its totient is φ = 13407486732.

The previous prime is 20111230081. The next prime is 20111230103. The reversal of 20111230101 is 10103211102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20111230101 - 2¹⁸ = 20110967957 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 (20111230103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3351871681 + ... + 3351871686.

It is an arithmetic number, because the mean of its divisors is an integer number (6703743368).

Almost surely, 2^20111230101 is an apocalyptic number.

It is an amenable number.

20111230101 is a deficient number, since it is larger than the sum of its proper divisors (6703743371).

20111230101 is an equidigital number, since it uses as much as digits as its factorization.

20111230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703743370.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20111230101 its reverse (10103211102), we get a palindrome (30214441203).

The spelling of 20111230101 in words is "twenty billion, one hundred eleven million, two hundred thirty thousand, one hundred one".