111020021011127 has 2 divisors, whose sum is σ = 111020021011128. Its totient is φ = 111020021011126.

The previous prime is 111020021011099. The next prime is 111020021011147. The reversal of 111020021011127 is 721110120020111.

It is a happy number.

It is an a-pointer prime, because the next prime (111020021011147) can be obtained adding 111020021011127 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111020021011127 - 2²⁸ = 111019752575671 is a prime.

It is a super-2 number, since 2×111020021011127² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111020021011099 and 111020021011108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111020021011147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510010505563 + 55510010505564.

It is an arithmetic number, because the mean of its divisors is an integer number (55510010505564).

Almost surely, 2^{111020021011127} is an apocalyptic number.

111020021011127 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020021011127 is an equidigital number, since it uses as much as digits as its factorization.

111020021011127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 111020021011127 its reverse (721110120020111), we get a palindrome (832130141031238).

The spelling of 111020021011127 in words is "one hundred eleven trillion, twenty billion, twenty-one million, eleven thousand, one hundred twenty-seven".