31969880203 has 4 divisors (see below), whose sum is σ = 32024343960. Its totient is φ = 31915416448.

The previous prime is 31969880191. The next prime is 31969880209. The reversal of 31969880203 is 30208896913.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31969880203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31969880209) 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, 27230998 + ... + 27232171.

It is an arithmetic number, because the mean of its divisors is an integer number (8006085990).

Almost surely, 2^31969880203 is an apocalyptic number.

31969880203 is a deficient number, since it is larger than the sum of its proper divisors (54463757).

31969880203 is an equidigital number, since it uses as much as digits as its factorization.

31969880203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54463756.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 31969880203 in words is "thirty-one billion, nine hundred sixty-nine million, eight hundred eighty thousand, two hundred three".