20020011111942 has 32 divisors (see below), whose sum is σ = 40494577263840. Its totient is φ = 6597595150080.

The previous prime is 20020011111941. The next prime is 20020011112033. The reversal of 20020011111942 is 24911111002002.

It is a super-2 number, since 2×20020011111942² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020011111941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2485692 + ... + 6798432.

It is an arithmetic number, because the mean of its divisors is an integer number (1265455539495).

Almost surely, 2^{20020011111942} is an apocalyptic number.

20020011111942 is an abundant number, since it is smaller than the sum of its proper divisors (20474566151898).

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

20020011111942 is a wasteful number, since it uses less digits than its factorization.

20020011111942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321528.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 20020011111942 its reverse (24911111002002), we get a palindrome (44931122113944).

The spelling of 20020011111942 in words is "twenty trillion, twenty billion, eleven million, one hundred eleven thousand, nine hundred forty-two".