31313066099 has 16 divisors (see below), whose sum is σ = 35901777408. Its totient is φ = 26753343552.

The previous prime is 31313066089. The next prime is 31313066101. The reversal of 31313066099 is 99066031313.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31313066099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31313066069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3189332 + ... + 3199134.

It is an arithmetic number, because the mean of its divisors is an integer number (2243861088).

Almost surely, 2^31313066099 is an apocalyptic number.

31313066099 is a deficient number, since it is larger than the sum of its proper divisors (4588711309).

31313066099 is an equidigital number, since it uses as much as digits as its factorization.

31313066099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11234.

The product of its (nonzero) digits is 78732, while the sum is 41.

The spelling of 31313066099 in words is "thirty-one billion, three hundred thirteen million, sixty-six thousand, ninety-nine".