111111311031301 has 16 divisors (see below), whose sum is σ = 129576331440000. Its totient is φ = 95237929588704.

The previous prime is 111111311031283. The next prime is 111111311031337. The reversal of 111111311031301 is 103130113111111.

It is not a de Polignac number, because 111111311031301 - 2⁹ = 111111311030789 is a prime.

It is a super-2 number, since 2×111111311031301² (a number of 29 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 (111111311031601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173115225 + ... + 173755873.

It is an arithmetic number, because the mean of its divisors is an integer number (8098520715000).

Almost surely, 2^{111111311031301} is an apocalyptic number.

It is an amenable number.

111111311031301 is a deficient number, since it is larger than the sum of its proper divisors (18465020408699).

111111311031301 is an frugal number, since it uses more digits than its factorization.

111111311031301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146313 (or 1146299 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 19.

Adding to 111111311031301 its reverse (103130113111111), we get a palindrome (214241424142412).

The spelling of 111111311031301 in words is "one hundred eleven trillion, one hundred eleven billion, three hundred eleven million, thirty-one thousand, three hundred one".