111020311111001 has 4 divisors (see below), whose sum is σ = 111322818771072. Its totient is φ = 110717803450932.

The previous prime is 111020311110991. The next prime is 111020311111037. The reversal of 111020311111001 is 100111113020111.

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 111020311111001 - 2⁶ = 111020311110937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020311111081) 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, 151253829485 + ... + 151253830218.

It is an arithmetic number, because the mean of its divisors is an integer number (27830704692768).

Almost surely, 2^{111020311111001} is an apocalyptic number.

It is an amenable number.

111020311111001 is a deficient number, since it is larger than the sum of its proper divisors (302507660071).

111020311111001 is an equidigital number, since it uses as much as digits as its factorization.

111020311111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302507660070.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 111020311111001 its reverse (100111113020111), we get a palindrome (211131424131112).

The spelling of 111020311111001 in words is "one hundred eleven trillion, twenty billion, three hundred eleven million, one hundred eleven thousand, one".