20102241423 has 16 divisors (see below), whose sum is σ = 29245072896. Its totient is φ = 12180906240.

The previous prime is 20102241421. The next prime is 20102241427. The reversal of 20102241423 is 32414220102.

It is not a de Polignac number, because 20102241423 - 2¹ = 20102241421 is a prime.

It is a super-2 number, since 2×20102241423² (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 20102241423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102241421) 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, 132415 + ... + 240287.

It is an arithmetic number, because the mean of its divisors is an integer number (1827817056).

Almost surely, 2^20102241423 is an apocalyptic number.

20102241423 is a deficient number, since it is larger than the sum of its proper divisors (9142831473).

20102241423 is a wasteful number, since it uses less digits than its factorization.

20102241423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113534.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20102241423 its reverse (32414220102), we get a palindrome (52516461525).

The spelling of 20102241423 in words is "twenty billion, one hundred two million, two hundred forty-one thousand, four hundred twenty-three".