31431403099 has 8 divisors (see below), whose sum is σ = 32482092032. Its totient is φ = 30383012520.

The previous prime is 31431403063. The next prime is 31431403121. The reversal of 31431403099 is 99030413413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31431403099 - 2¹⁹ = 31430878811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31431403039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546759 + ... + 601504.

It is an arithmetic number, because the mean of its divisors is an integer number (4060261504).

Almost surely, 2^31431403099 is an apocalyptic number.

31431403099 is a deficient number, since it is larger than the sum of its proper divisors (1050688933).

31431403099 is a wasteful number, since it uses less digits than its factorization.

31431403099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149177.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 31431403099 in words is "thirty-one billion, four hundred thirty-one million, four hundred three thousand, ninety-nine".