110312381 has 2 divisors, whose sum is σ = 110312382. Its totient is φ = 110312380.

The previous prime is 110312357. The next prime is 110312387. The reversal of 110312381 is 183213011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109725625 + 586756 = 10475^2 + 766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110312381 is a prime.

It is a super-2 number, since 2×110312381² = 24337642803778322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_6320126 and since 110312381 and 6320126 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110312387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55156190 + 55156191.

It is an arithmetic number, because the mean of its divisors is an integer number (55156191).

Almost surely, 2^110312381 is an apocalyptic number.

It is an amenable number.

110312381 is a deficient number, since it is larger than the sum of its proper divisors (1).

110312381 is an equidigital number, since it uses as much as digits as its factorization.

110312381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 110312381 is about 10502.9701037373. The cubic root of 110312381 is about 479.5951171977.

Adding to 110312381 its reverse (183213011), we get a palindrome (293525392).

The spelling of 110312381 in words is "one hundred ten million, three hundred twelve thousand, three hundred eighty-one".