111233112021077 has 2 divisors, whose sum is σ = 111233112021078. Its totient is φ = 111233112021076.

The previous prime is 111233112021071. The next prime is 111233112021191. The reversal of 111233112021077 is 770120211332111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109046244835441 + 2186867185636 = 10442521^2 + 1478806^2 .

It is an emirp because it is prime and its reverse (770120211332111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111233112021077 - 2²² = 111233107826773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111233112021071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55616556010538 + 55616556010539.

It is an arithmetic number, because the mean of its divisors is an integer number (55616556010539).

Almost surely, 2^{111233112021077} is an apocalyptic number.

It is an amenable number.

111233112021077 is a deficient number, since it is larger than the sum of its proper divisors (1).

111233112021077 is an equidigital number, since it uses as much as digits as its factorization.

111233112021077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 32.

Adding to 111233112021077 its reverse (770120211332111), we get a palindrome (881353323353188).

The spelling of 111233112021077 in words is "one hundred eleven trillion, two hundred thirty-three billion, one hundred twelve million, twenty-one thousand, seventy-seven".