31404443099 has 4 divisors (see below), whose sum is σ = 32487354960. Its totient is φ = 30321531240.

The previous prime is 31404443093. The next prime is 31404443159. The reversal of 31404443099 is 99034440413.

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 31404443099 - 2⁸ = 31404442843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31404443093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541455887 + ... + 541455944.

It is an arithmetic number, because the mean of its divisors is an integer number (8121838740).

Almost surely, 2^31404443099 is an apocalyptic number.

31404443099 is a deficient number, since it is larger than the sum of its proper divisors (1082911861).

31404443099 is a wasteful number, since it uses less digits than its factorization.

31404443099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082911860.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 31404443099 in words is "thirty-one billion, four hundred four million, four hundred forty-three thousand, ninety-nine".