31243342203 has 48 divisors (see below), whose sum is σ = 48315009600. Its totient is φ = 19386501120.

The previous prime is 31243342199. The next prime is 31243342213. The reversal of 31243342203 is 30224334213.

31243342203 is a `hidden beast` number, since 3 + 1 + 2 + 433 + 4 + 220 + 3 = 666.

It is not a de Polignac number, because 31243342203 - 2² = 31243342199 is a prime.

It is a super-2 number, since 2×31243342203² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31243342213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10521703 + ... + 10524671.

It is an arithmetic number, because the mean of its divisors is an integer number (1006562700).

Almost surely, 2^31243342203 is an apocalyptic number.

31243342203 is a deficient number, since it is larger than the sum of its proper divisors (17071667397).

31243342203 is a wasteful number, since it uses less digits than its factorization.

31243342203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3732 (or 3729 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 31243342203 its reverse (30224334213), we get a palindrome (61467676416).

The spelling of 31243342203 in words is "thirty-one billion, two hundred forty-three million, three hundred forty-two thousand, two hundred three".