43100031013 has 8 divisors (see below), whose sum is σ = 46539861368. Its totient is φ = 39677978304.

The previous prime is 43100030989. The next prime is 43100031017. The reversal of 43100031013 is 31013000134.

It can be written as a sum of positive squares in 4 ways, for example, as 1906457569 + 41193573444 = 43663^2 + 202962^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43100031013 is a prime.

It is a super-2 number, since 2×43100031013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43100031017) 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, 4439370 + ... + 4449067.

It is an arithmetic number, because the mean of its divisors is an integer number (5817482671).

Almost surely, 2^43100031013 is an apocalyptic number.

It is an amenable number.

43100031013 is a deficient number, since it is larger than the sum of its proper divisors (3439830355).

43100031013 is a wasteful number, since it uses less digits than its factorization.

43100031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8888823.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 43100031013 its reverse (31013000134), we get a palindrome (74113031147).

The spelling of 43100031013 in words is "forty-three billion, one hundred million, thirty-one thousand, thirteen".