4031121012 has 24 divisors (see below), whose sum is σ = 9427387200. Its totient is φ = 1340644416.

The previous prime is 4031121001. The next prime is 4031121023. The reversal of 4031121012 is 2101211304.

It is an interprime number because it is at equal distance from previous prime (4031121001) and next prime (4031121023).

It is a super-2 number, since 2×4031121012² = 32499873226775808288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4031120982 and 4031121000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377337 + ... + 387872.

It is an arithmetic number, because the mean of its divisors is an integer number (392807800).

Almost surely, 2^4031121012 is an apocalyptic number.

It is an amenable number.

4031121012 is an abundant number, since it is smaller than the sum of its proper divisors (5396266188).

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

4031121012 is a wasteful number, since it uses less digits than its factorization.

4031121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765655 (or 765653 counting only the distinct ones).

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

The square root of 4031121012 is about 63491.1097083678. The cubic root of 4031121012 is about 1591.5072152443.

Adding to 4031121012 its reverse (2101211304), we get a palindrome (6132332316).

The spelling of 4031121012 in words is "four billion, thirty-one million, one hundred twenty-one thousand, twelve".