20003122134 has 24 divisors (see below), whose sum is σ = 43373928312. Its totient is φ = 6662502720.

The previous prime is 20003122129. The next prime is 20003122163. The reversal of 20003122134 is 43122130002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409987 + ... + 456174.

It is an arithmetic number, because the mean of its divisors is an integer number (1807247013).

Almost surely, 2^20003122134 is an apocalyptic number.

20003122134 is an abundant number, since it is smaller than the sum of its proper divisors (23370806178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003122134 is a wasteful number, since it uses less digits than its factorization.

20003122134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867452 (or 867449 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20003122134 its reverse (43122130002), we get a palindrome (63125252136).

The spelling of 20003122134 in words is "twenty billion, three million, one hundred twenty-two thousand, one hundred thirty-four".