43102331145 has 20 divisors (see below), whose sum is σ = 77264920260. Its totient is φ = 22987909728.

The previous prime is 43102331141. The next prime is 43102331147. The reversal of 43102331145 is 54113320134.

It is a happy number.

43102331145 is a `hidden beast` number, since 4 + 310 + 2 + 331 + 14 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22809758841 + 20292572304 = 151029^2 + 142452^2 .

It is not a de Polignac number, because 43102331145 - 2² = 43102331141 is a prime.

It is a super-2 number, since 2×43102331145² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43102331141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53212350 + ... + 53213159.

It is an arithmetic number, because the mean of its divisors is an integer number (3863246013).

Almost surely, 2^43102331145 is an apocalyptic number.

43102331145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43102331145 is a deficient number, since it is larger than the sum of its proper divisors (34162589115).

43102331145 is a wasteful number, since it uses less digits than its factorization.

43102331145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106425526 (or 106425517 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 43102331145 its reverse (54113320134), we get a palindrome (97215651279).

The spelling of 43102331145 in words is "forty-three billion, one hundred two million, three hundred thirty-one thousand, one hundred forty-five".