20111014423 has 8 divisors (see below), whose sum is σ = 20260273040. Its totient is φ = 19961821440.

The previous prime is 20111014411. The next prime is 20111014463. The reversal of 20111014423 is 32441011102.

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 20111014423 - 2³³ = 11521079831 is a prime.

It is a super-2 number, since 2×20111014423² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20111014423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111014463) 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, 720361 + ... + 747757.

It is an arithmetic number, because the mean of its divisors is an integer number (2532534130).

Almost surely, 2^20111014423 is an apocalyptic number.

20111014423 is a deficient number, since it is larger than the sum of its proper divisors (149258617).

20111014423 is a wasteful number, since it uses less digits than its factorization.

20111014423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32817.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20111014423 its reverse (32441011102), we get a palindrome (52552025525).

The spelling of 20111014423 in words is "twenty billion, one hundred eleven million, fourteen thousand, four hundred twenty-three".