20020402004042 has 48 divisors (see below), whose sum is σ = 33737338131840. Its totient is φ = 8899645634880.

The previous prime is 20020402004041. The next prime is 20020402004051. The reversal of 20020402004042 is 24040020402002.

It is not an unprimeable number, because it can be changed into a prime (20020402004041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13978313 + ... + 15343859.

It is an arithmetic number, because the mean of its divisors is an integer number (702861211080).

Almost surely, 2^{20020402004042} is an apocalyptic number.

20020402004042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20020402004042 is a deficient number, since it is larger than the sum of its proper divisors (13716936127798).

20020402004042 is a wasteful number, since it uses less digits than its factorization.

20020402004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366907 (or 1366896 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20020402004042 its reverse (24040020402002), we get a palindrome (44060422406044).

The spelling of 20020402004042 in words is "twenty trillion, twenty billion, four hundred two million, four thousand, forty-two".