111012020111101 has 2 divisors, whose sum is σ = 111012020111102. Its totient is φ = 111012020111100.

The previous prime is 111012020111093. The next prime is 111012020111107. The reversal of 111012020111101 is 101111020210111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82045008936900 + 28967011174201 = 9057870^2 + 5382101^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012020111101 - 2³ = 111012020111093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012020111107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506010055550 + 55506010055551.

It is an arithmetic number, because the mean of its divisors is an integer number (55506010055551).

Almost surely, 2^{111012020111101} is an apocalyptic number.

It is an amenable number.

111012020111101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012020111101 is an equidigital number, since it uses as much as digits as its factorization.

111012020111101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111012020111101 its reverse (101111020210111), we get a palindrome (212123040321212).

The spelling of 111012020111101 in words is "one hundred eleven trillion, twelve billion, twenty million, one hundred eleven thousand, one hundred one".