20253134423 has 8 divisors (see below), whose sum is σ = 20392502016. Its totient is φ = 20114114400.

The previous prime is 20253134411. The next prime is 20253134477. The reversal of 20253134423 is 32443135202.

It is a happy number.

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 20253134423 - 2¹⁰ = 20253133399 is a prime.

It is a super-2 number, since 2×20253134423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20253134483) 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, 30593 + ... + 203573.

It is an arithmetic number, because the mean of its divisors is an integer number (2549062752).

Almost surely, 2^20253134423 is an apocalyptic number.

20253134423 is a deficient number, since it is larger than the sum of its proper divisors (139367593).

20253134423 is a wasteful number, since it uses less digits than its factorization.

20253134423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173785.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 20253134423 its reverse (32443135202), we get a palindrome (52696269625).

The spelling of 20253134423 in words is "twenty billion, two hundred fifty-three million, one hundred thirty-four thousand, four hundred twenty-three".