20101022423 has 2 divisors, whose sum is σ = 20101022424. Its totient is φ = 20101022422.

The previous prime is 20101022407. The next prime is 20101022429. The reversal of 20101022423 is 32422010102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20101022423 - 2⁴ = 20101022407 is a prime.

It is a super-2 number, since 2×20101022423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101022429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050511211 + 10050511212.

It is an arithmetic number, because the mean of its divisors is an integer number (10050511212).

Almost surely, 2^20101022423 is an apocalyptic number.

20101022423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101022423 is an equidigital number, since it uses as much as digits as its factorization.

20101022423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20101022423 its reverse (32422010102), we get a palindrome (52523032525).

The spelling of 20101022423 in words is "twenty billion, one hundred one million, twenty-two thousand, four hundred twenty-three".