31111101313 has 8 divisors (see below), whose sum is σ = 32429580480. Its totient is φ = 29809001040.

The previous prime is 31111101289. The next prime is 31111101319. The reversal of 31111101313 is 31310111113.

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 31111101313 - 2²¹ = 31109004161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31111101319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4090845 + ... + 4098442.

It is an arithmetic number, because the mean of its divisors is an integer number (4053697560).

Almost surely, 2^31111101313 is an apocalyptic number.

It is an amenable number.

31111101313 is a deficient number, since it is larger than the sum of its proper divisors (1318479167).

31111101313 is a wasteful number, since it uses less digits than its factorization.

31111101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189447.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 31111101313 its reverse (31310111113), we get a palindrome (62421212426).

The spelling of 31111101313 in words is "thirty-one billion, one hundred eleven million, one hundred one thousand, three hundred thirteen".