4021131012 has 24 divisors (see below), whose sum is σ = 9396895200. Its totient is φ = 1338340416.

The previous prime is 4021131011. The next prime is 4021131019. The reversal of 4021131012 is 2101311204.

It is a junction number, because it is equal to n+sod(n) for n = 4021130982 and 4021131000.

It is not an unprimeable number, because it can be changed into a prime (4021131011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246337 + ... + 262152.

It is an arithmetic number, because the mean of its divisors is an integer number (391537300).

Almost surely, 2^4021131012 is an apocalyptic number.

It is an amenable number.

4021131012 is an abundant number, since it is smaller than the sum of its proper divisors (5375764188).

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

4021131012 is a wasteful number, since it uses less digits than its factorization.

4021131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509155 (or 509153 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 4021131012 is about 63412.3884741775. The cubic root of 4021131012 is about 1590.1914266577.

Adding to 4021131012 its reverse (2101311204), we get a palindrome (6122442216).

The spelling of 4021131012 in words is "four billion, twenty-one million, one hundred thirty-one thousand, twelve".