43431421232152 has 16 divisors (see below), whose sum is σ = 81435651807600. Its totient is φ = 21715247416800.

The previous prime is 43431421232053. The next prime is 43431421232161. The reversal of 43431421232152 is 25123212413434.

It is a super-2 number, since 2×43431421232152² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57501252 + ... + 58251667.

It is an arithmetic number, because the mean of its divisors is an integer number (5089728237975).

Almost surely, 2^{43431421232152} is an apocalyptic number.

It is an amenable number.

43431421232152 is a deficient number, since it is larger than the sum of its proper divisors (38004230575448).

43431421232152 is a wasteful number, since it uses less digits than its factorization.

43431421232152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115799826 (or 115799822 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

Adding to 43431421232152 its reverse (25123212413434), we get a palindrome (68554633645586).

The spelling of 43431421232152 in words is "forty-three trillion, four hundred thirty-one billion, four hundred twenty-one million, two hundred thirty-two thousand, one hundred fifty-two".