20001023134 has 8 divisors (see below), whose sum is σ = 30002907528. Its totient is φ = 10000053960.

The previous prime is 20001023131. The next prime is 20001023149. The reversal of 20001023134 is 43132010002.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001023131) 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, 171277 + ... + 263320.

It is an arithmetic number, because the mean of its divisors is an integer number (3750363441).

Almost surely, 2^20001023134 is an apocalyptic number.

20001023134 is a deficient number, since it is larger than the sum of its proper divisors (10001884394).

20001023134 is a wasteful number, since it uses less digits than its factorization.

20001023134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457610.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20001023134 its reverse (43132010002), we get a palindrome (63133033136).

The spelling of 20001023134 in words is "twenty billion, one million, twenty-three thousand, one hundred thirty-four".