20134333231 has 8 divisors (see below), whose sum is σ = 22440743280. Its totient is φ = 17952594048.

The previous prime is 20134333223. The next prime is 20134333267. The reversal of 20134333231 is 13233343102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20134333231 - 2³ = 20134333223 is a prime.

It is a super-2 number, since 2×20134333231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20134333196 and 20134333205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134333211) 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, 31167376 + ... + 31168021.

It is an arithmetic number, because the mean of its divisors is an integer number (2805092910).

Almost surely, 2^20134333231 is an apocalyptic number.

20134333231 is a deficient number, since it is larger than the sum of its proper divisors (2306410049).

20134333231 is a wasteful number, since it uses less digits than its factorization.

20134333231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62335433.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20134333231 its reverse (13233343102), we get a palindrome (33367676333).

The spelling of 20134333231 in words is "twenty billion, one hundred thirty-four million, three hundred thirty-three thousand, two hundred thirty-one".