20533004134 has 8 divisors (see below), whose sum is σ = 30800711448. Its totient is φ = 10266100320.

The previous prime is 20533004131. The next prime is 20533004143. The reversal of 20533004134 is 43140033502.

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

It is a super-2 number, since 2×20533004134² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20533004099 and 20533004108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533004131) 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, 132307 + ... + 242014.

It is an arithmetic number, because the mean of its divisors is an integer number (3850088931).

Almost surely, 2^20533004134 is an apocalyptic number.

20533004134 is a deficient number, since it is larger than the sum of its proper divisors (10267707314).

20533004134 is a wasteful number, since it uses less digits than its factorization.

20533004134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401750.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20533004134 its reverse (43140033502), we get a palindrome (63673037636).

The spelling of 20533004134 in words is "twenty billion, five hundred thirty-three million, four thousand, one hundred thirty-four".