111057273109 has 2 divisors, whose sum is σ = 111057273110. Its totient is φ = 111057273108.

The previous prime is 111057273071. The next prime is 111057273127. The reversal of 111057273109 is 901372750111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56146724209 + 54910548900 = 236953^2 + 234330^2 .

It is a cyclic number.

It is not a de Polignac number, because 111057273109 - 2¹³ = 111057264917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111057273149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55528636554 + 55528636555.

It is an arithmetic number, because the mean of its divisors is an integer number (55528636555).

Almost surely, 2^111057273109 is an apocalyptic number.

It is an amenable number.

111057273109 is a deficient number, since it is larger than the sum of its proper divisors (1).

111057273109 is an equidigital number, since it uses as much as digits as its factorization.

111057273109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 37.

The spelling of 111057273109 in words is "one hundred eleven billion, fifty-seven million, two hundred seventy-three thousand, one hundred nine".