4031040421320 has 128 divisors (see below), whose sum is σ = 13441411175040. Its totient is φ = 958783754240.

The previous prime is 4031040421319. The next prime is 4031040421321. The reversal of 4031040421320 is 231240401304.

It is an interprime number because it is at equal distance from previous prime (4031040421319) and next prime (4031040421321).

It is a super-2 number, since 2×4031040421320² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (4031040421321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28739649 + ... + 28879568.

It is an arithmetic number, because the mean of its divisors is an integer number (105011024805).

Almost surely, 2^{4031040421320} is an apocalyptic number.

4031040421320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4031040421320 is an abundant number, since it is smaller than the sum of its proper divisors (9410370753720).

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

4031040421320 is a wasteful number, since it uses less digits than its factorization.

4031040421320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57619295 (or 57619291 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 4031040421320 its reverse (231240401304), we get a palindrome (4262280822624).

The spelling of 4031040421320 in words is "four trillion, thirty-one billion, forty million, four hundred twenty-one thousand, three hundred twenty".