31330221001099 has 4 divisors (see below), whose sum is σ = 31330386209320. Its totient is φ = 31330055792880.

The previous prime is 31330221001091. The next prime is 31330221001103. The reversal of 31330221001099 is 99010012203313.

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 31330221001099 - 2³ = 31330221001091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31330221001091) 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, 82319322 + ... + 82699039.

It is an arithmetic number, because the mean of its divisors is an integer number (7832596552330).

Almost surely, 2^{31330221001099} is an apocalyptic number.

31330221001099 is a deficient number, since it is larger than the sum of its proper divisors (165208221).

31330221001099 is a wasteful number, since it uses less digits than its factorization.

31330221001099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165208220.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 31330221001099 in words is "thirty-one trillion, three hundred thirty billion, two hundred twenty-one million, one thousand, ninety-nine".