20102132223023 has 4 divisors (see below), whose sum is σ = 20102146404768. Its totient is φ = 20102118041280.

The previous prime is 20102132223013. The next prime is 20102132223049. The reversal of 20102132223023 is 32032223120102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20102132223023 - 2⁶ = 20102132222959 is a prime.

It is a super-2 number, since 2×20102132223023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20102132223023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102132223013) 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, 4694786 + ... + 7889567.

It is an arithmetic number, because the mean of its divisors is an integer number (5025536601192).

Almost surely, 2^{20102132223023} is an apocalyptic number.

20102132223023 is a deficient number, since it is larger than the sum of its proper divisors (14181745).

20102132223023 is a wasteful number, since it uses less digits than its factorization.

20102132223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14181744.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20102132223023 its reverse (32032223120102), we get a palindrome (52134355343125).

The spelling of 20102132223023 in words is "twenty trillion, one hundred two billion, one hundred thirty-two million, two hundred twenty-three thousand, twenty-three".