43403421313 has 8 divisors (see below), whose sum is σ = 50757489728. Its totient is φ = 36337747824.

The previous prime is 43403421307. The next prime is 43403421349. The reversal of 43403421313 is 31312430434.

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

It is a de Polignac number, because none of the positive numbers 2^k-43403421313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43403421713) 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, 72098406 + ... + 72099007.

It is an arithmetic number, because the mean of its divisors is an integer number (6344686216).

Almost surely, 2^43403421313 is an apocalyptic number.

43403421313 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

43403421313 is a deficient number, since it is larger than the sum of its proper divisors (7354068415).

43403421313 is a wasteful number, since it uses less digits than its factorization.

43403421313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144197463.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 43403421313 its reverse (31312430434), we get a palindrome (74715851747).

It can be divided in two parts, 4340 and 3421313, that added together give a triangular number (3425653 = T₂₆₁₇).

The spelling of 43403421313 in words is "forty-three billion, four hundred three million, four hundred twenty-one thousand, three hundred thirteen".