110111110001381 has 2 divisors, whose sum is σ = 110111110001382. Its totient is φ = 110111110001380.

The previous prime is 110111110001339. The next prime is 110111110001401. The reversal of 110111110001381 is 183100011111011.

It is a happy number.

It is an a-pointer prime, because the next prime (110111110001401) can be obtained adding 110111110001381 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89897723436481 + 20213386564900 = 9481441^2 + 4495930^2 .

It is a cyclic number.

It is not a de Polignac number, because 110111110001381 - 2⁶ = 110111110001317 is a prime.

It is a super-2 number, since 2×110111110001381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110111110003381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55055555000690 + 55055555000691.

It is an arithmetic number, because the mean of its divisors is an integer number (55055555000691).

Almost surely, 2^{110111110001381} is an apocalyptic number.

It is an amenable number.

110111110001381 is a deficient number, since it is larger than the sum of its proper divisors (1).

110111110001381 is an equidigital number, since it uses as much as digits as its factorization.

110111110001381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 20.

Adding to 110111110001381 its reverse (183100011111011), we get a palindrome (293211121112392).

The spelling of 110111110001381 in words is "one hundred ten trillion, one hundred eleven billion, one hundred ten million, one thousand, three hundred eighty-one".