43243231401 has 32 divisors (see below), whose sum is σ = 65648016000. Its totient is φ = 28116495360.

The previous prime is 43243231363. The next prime is 43243231403. The reversal of 43243231401 is 10413234234.

43243231401 is a `hidden beast` number, since 4 + 3 + 24 + 3 + 231 + 401 = 666.

43243231401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43243231401 - 2¹³ = 43243223209 is a prime.

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 (43243231403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5649625 + ... + 5657273.

It is an arithmetic number, because the mean of its divisors is an integer number (2051500500).

Almost surely, 2^43243231401 is an apocalyptic number.

43243231401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

43243231401 is a deficient number, since it is larger than the sum of its proper divisors (22404784599).

43243231401 is a wasteful number, since it uses less digits than its factorization.

43243231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806 (or 12800 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 43243231401 its reverse (10413234234), we get a palindrome (53656465635).

The spelling of 43243231401 in words is "forty-three billion, two hundred forty-three million, two hundred thirty-one thousand, four hundred one".