31033122113 has 4 divisors (see below), whose sum is σ = 35466425280. Its totient is φ = 26599818948.

The previous prime is 31033122091. The next prime is 31033122121. The reversal of 31033122113 is 31122133013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31033122113 - 2¹⁶ = 31033056577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31033122173) 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, 2216651573 + ... + 2216651586.

It is an arithmetic number, because the mean of its divisors is an integer number (8866606320).

Almost surely, 2^31033122113 is an apocalyptic number.

It is an amenable number.

31033122113 is a deficient number, since it is larger than the sum of its proper divisors (4433303167).

31033122113 is an equidigital number, since it uses as much as digits as its factorization.

31033122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4433303166.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31033122113 its reverse (31122133013), we get a palindrome (62155255126).

The spelling of 31033122113 in words is "thirty-one billion, thirty-three million, one hundred twenty-two thousand, one hundred thirteen".