111320477 has 2 divisors, whose sum is σ = 111320478. Its totient is φ = 111320476.

The previous prime is 111320467. The next prime is 111320491. The reversal of 111320477 is 774023111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107039716 + 4280761 = 10346^2 + 2069^2 .

It is a cyclic number.

It is not a de Polignac number, because 111320477 - 2¹⁴ = 111304093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111320467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55660238 + 55660239.

It is an arithmetic number, because the mean of its divisors is an integer number (55660239).

Almost surely, 2^111320477 is an apocalyptic number.

It is an amenable number.

111320477 is a deficient number, since it is larger than the sum of its proper divisors (1).

111320477 is an equidigital number, since it uses as much as digits as its factorization.

111320477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 111320477 is about 10550.8519561218. The cubic root of 111320477 is about 481.0516251717.

Adding to 111320477 its reverse (774023111), we get a palindrome (885343588).

The spelling of 111320477 in words is "one hundred eleven million, three hundred twenty thousand, four hundred seventy-seven".