31013300111 has 4 divisors (see below), whose sum is σ = 31054054224. Its totient is φ = 30972546000.

The previous prime is 31013300083. The next prime is 31013300161. The reversal of 31013300111 is 11100331013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013300111 is a prime.

It is a super-2 number, since 2×31013300111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013300161) 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 3 ways as a sum of consecutive naturals, for example, 20375915 + ... + 20377436.

It is an arithmetic number, because the mean of its divisors is an integer number (7763513556).

Almost surely, 2^31013300111 is an apocalyptic number.

31013300111 is a deficient number, since it is larger than the sum of its proper divisors (40754113).

31013300111 is an equidigital number, since it uses as much as digits as its factorization.

31013300111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40754112.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31013300111 its reverse (11100331013), we get a palindrome (42113631124).

The spelling of 31013300111 in words is "thirty-one billion, thirteen million, three hundred thousand, one hundred eleven".