4020421011140 has 24 divisors (see below), whose sum is σ = 8449495675992. Its totient is φ = 1606909061120.

The previous prime is 4020421011127. The next prime is 4020421011163. The reversal of 4020421011140 is 411101240204.

It can be written as a sum of positive squares in 4 ways, for example, as 1259566268416 + 2760854742724 = 1122304^2 + 1661582^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78682781 + ... + 78733860.

It is an arithmetic number, because the mean of its divisors is an integer number (352062319833).

Almost surely, 2^{4020421011140} is an apocalyptic number.

It is an amenable number.

4020421011140 is an abundant number, since it is smaller than the sum of its proper divisors (4429074664852).

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

4020421011140 is a wasteful number, since it uses less digits than its factorization.

4020421011140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157417927 (or 157417925 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 4020421011140 its reverse (411101240204), we get a palindrome (4431522251344).

The spelling of 4020421011140 in words is "four trillion, twenty billion, four hundred twenty-one million, eleven thousand, one hundred forty".