111303320131 has 4 divisors (see below), whose sum is σ = 112644324072. Its totient is φ = 109962316192.

The previous prime is 111303320087. The next prime is 111303320137. The reversal of 111303320131 is 131023303111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131023303111 = 1409 ⋅92990279.

It is a cyclic number.

It is not a de Polignac number, because 111303320131 - 2¹³ = 111303311939 is a prime.

It is a super-2 number, since 2×111303320131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111303320099 and 111303320108.

It is not an unprimeable number, because it can be changed into a prime (111303320137) 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, 670501846 + ... + 670502011.

It is an arithmetic number, because the mean of its divisors is an integer number (28161081018).

Almost surely, 2^111303320131 is an apocalyptic number.

111303320131 is a deficient number, since it is larger than the sum of its proper divisors (1341003941).

111303320131 is an equidigital number, since it uses as much as digits as its factorization.

111303320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341003940.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 111303320131 its reverse (131023303111), we get a palindrome (242326623242).

The spelling of 111303320131 in words is "one hundred eleven billion, three hundred three million, three hundred twenty thousand, one hundred thirty-one".