31200140203 has 4 divisors (see below), whose sum is σ = 31221703600. Its totient is φ = 31178576808.

The previous prime is 31200140201. The next prime is 31200140207. The reversal of 31200140203 is 30204100213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31200140203 - 2¹ = 31200140201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31200140201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10779528 + ... + 10782421.

It is an arithmetic number, because the mean of its divisors is an integer number (7805425900).

Almost surely, 2^31200140203 is an apocalyptic number.

31200140203 is a deficient number, since it is larger than the sum of its proper divisors (21563397).

31200140203 is a wasteful number, since it uses less digits than its factorization.

31200140203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21563396.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31200140203 its reverse (30204100213), we get a palindrome (61404240416).

The spelling of 31200140203 in words is "thirty-one billion, two hundred million, one hundred forty thousand, two hundred three".