31880665103 has 4 divisors (see below), whose sum is σ = 36435045840. Its totient is φ = 27326284368.

The previous prime is 31880665057. The next prime is 31880665121. The reversal of 31880665103 is 30156608813.

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 31880665103 - 2¹⁴ = 31880648719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31880665123) 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, 2277190358 + ... + 2277190371.

It is an arithmetic number, because the mean of its divisors is an integer number (9108761460).

Almost surely, 2^31880665103 is an apocalyptic number.

31880665103 is a deficient number, since it is larger than the sum of its proper divisors (4554380737).

31880665103 is an equidigital number, since it uses as much as digits as its factorization.

31880665103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554380736.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 31880665103 in words is "thirty-one billion, eight hundred eighty million, six hundred sixty-five thousand, one hundred three".