4020434202231 has 24 divisors (see below), whose sum is σ = 6376636388304. Its totient is φ = 2522625379200.

The previous prime is 4020434202203. The next prime is 4020434202241. The reversal of 4020434202231 is 1322024340204.

4020434202231 is a `hidden beast` number, since 4 + 0 + 2 + 0 + 4 + 3 + 420 + 2 + 231 = 666.

It is not a de Polignac number, because 4020434202231 - 2⁵ = 4020434202199 is a prime.

It is a super-2 number, since 2×4020434202231² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 4020434202195 and 4020434202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020434202241) 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, 486613420 + ... + 486621681.

It is an arithmetic number, because the mean of its divisors is an integer number (265693182846).

Almost surely, 2^{4020434202231} is an apocalyptic number.

4020434202231 is a deficient number, since it is larger than the sum of its proper divisors (2356202186073).

4020434202231 is an equidigital number, since it uses as much as digits as its factorization.

4020434202231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973235133 (or 973235121 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 4020434202231 its reverse (1322024340204), we get a palindrome (5342458542435).

The spelling of 4020434202231 in words is "four trillion, twenty billion, four hundred thirty-four million, two hundred two thousand, two hundred thirty-one".