4031311402120 has 32 divisors (see below), whose sum is σ = 9070528959000. Its totient is φ = 1612510640128.

The previous prime is 4031311402109. The next prime is 4031311402123. The reversal of 4031311402120 is 212041131304.

It can be written as a sum of positive squares in 4 ways, for example, as 2125746504036 + 1905564898084 = 1457994^2 + 1380422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4031311402091 and 4031311402100.

It is not an unprimeable number, because it can be changed into a prime (4031311402123) 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 7 ways as a sum of consecutive naturals, for example, 5137656 + ... + 5870104.

Almost surely, 2^{4031311402120} is an apocalyptic number.

4031311402120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4031311402120 is an abundant number, since it is smaller than the sum of its proper divisors (5039217556880).

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

4031311402120 is a wasteful number, since it uses less digits than its factorization.

4031311402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870057 (or 870053 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 4031311402120 its reverse (212041131304), we get a palindrome (4243352533424).

The spelling of 4031311402120 in words is "four trillion, thirty-one billion, three hundred eleven million, four hundred two thousand, one hundred twenty".