20021004134 has 16 divisors (see below), whose sum is σ = 30801466080. Its totient is φ = 9754443840.

The previous prime is 20021004089. The next prime is 20021004149. The reversal of 20021004134 is 43140012002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80849 + ... + 215820.

It is an arithmetic number, because the mean of its divisors is an integer number (1925091630).

Almost surely, 2^20021004134 is an apocalyptic number.

20021004134 is a deficient number, since it is larger than the sum of its proper divisors (10780461946).

20021004134 is a wasteful number, since it uses less digits than its factorization.

20021004134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297535.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20021004134 its reverse (43140012002), we get a palindrome (63161016136).

The spelling of 20021004134 in words is "twenty billion, twenty-one million, four thousand, one hundred thirty-four".