31200434243 has 8 divisors (see below), whose sum is σ = 34048081200. Its totient is φ = 28354661280.

The previous prime is 31200434207. The next prime is 31200434249. The reversal of 31200434243 is 34243400213.

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

It is not a de Polignac number, because 31200434243 - 2³² = 26905466947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31200434249) 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, 433568 + ... + 500381.

It is an arithmetic number, because the mean of its divisors is an integer number (4256010150).

Almost surely, 2^31200434243 is an apocalyptic number.

31200434243 is a deficient number, since it is larger than the sum of its proper divisors (2847646957).

31200434243 is a wasteful number, since it uses less digits than its factorization.

31200434243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936997.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31200434243 its reverse (34243400213), we get a palindrome (65443834456).

The spelling of 31200434243 in words is "thirty-one billion, two hundred million, four hundred thirty-four thousand, two hundred forty-three".