20230135023 has 16 divisors (see below), whose sum is σ = 30839095040. Its totient is φ = 11555493696.

The previous prime is 20230134989. The next prime is 20230135063. The reversal of 20230135023 is 32053103202.

It is not a de Polignac number, because 20230135023 - 2⁸ = 20230134767 is a prime.

It is a super-2 number, since 2×20230135023² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230135063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136390 + ... + 243027.

It is an arithmetic number, because the mean of its divisors is an integer number (1927443440).

Almost surely, 2^20230135023 is an apocalyptic number.

20230135023 is a deficient number, since it is larger than the sum of its proper divisors (10608960017).

20230135023 is a wasteful number, since it uses less digits than its factorization.

20230135023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381966.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 20230135023 its reverse (32053103202), we get a palindrome (52283238225).

The spelling of 20230135023 in words is "twenty billion, two hundred thirty million, one hundred thirty-five thousand, twenty-three".