4031001013 has 12 divisors (see below), whose sum is σ = 4457809728. Its totient is φ = 3641748240.

The previous prime is 4031001011. The next prime is 4031001043. The reversal of 4031001013 is 3101001304.

It is not a de Polignac number, because 4031001013 - 2¹ = 4031001011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4031000984 and 4031001002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4031001011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245803 + ... + 261688.

It is an arithmetic number, because the mean of its divisors is an integer number (371484144).

Almost surely, 2^4031001013 is an apocalyptic number.

It is an amenable number.

4031001013 is a deficient number, since it is larger than the sum of its proper divisors (426808715).

4031001013 is a wasteful number, since it uses less digits than its factorization.

4031001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507564 (or 507551 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 4031001013 is about 63490.1646950140. The cubic root of 4031001013 is about 1591.4914230144.

Adding to 4031001013 its reverse (3101001304), we get a palindrome (7132002317).

The spelling of 4031001013 in words is "four billion, thirty-one million, one thousand, thirteen".