20420100140043 has 16 divisors (see below), whose sum is σ = 28834667283456. Its totient is φ = 12809816023680.

The previous prime is 20420100140039. The next prime is 20420100140047. The reversal of 20420100140043 is 34004100102402.

It is an interprime number because it is at equal distance from previous prime (20420100140039) and next prime (20420100140047).

It is not a de Polignac number, because 20420100140043 - 2² = 20420100140039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20420100140047) 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, 43448803 + ... + 43916268.

It is an arithmetic number, because the mean of its divisors is an integer number (1802166705216).

Almost surely, 2^{20420100140043} is an apocalyptic number.

20420100140043 is a deficient number, since it is larger than the sum of its proper divisors (8414567143413).

20420100140043 is a wasteful number, since it uses less digits than its factorization.

20420100140043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87369674.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20420100140043 its reverse (34004100102402), we get a palindrome (54424200242445).

The spelling of 20420100140043 in words is "twenty trillion, four hundred twenty billion, one hundred million, one hundred forty thousand, forty-three".