111320611573477 has 4 divisors (see below), whose sum is σ = 111321384879276. Its totient is φ = 111319838267680.

The previous prime is 111320611573469. The next prime is 111320611573643. The reversal of 111320611573477 is 774375116023111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65674021810401 + 45646589763076 = 8103951^2 + 6756226^2 .

It is a cyclic number.

It is not a de Polignac number, because 111320611573477 - 2³ = 111320611573469 is a prime.

It is a super-2 number, since 2×111320611573477² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111320611573477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320611573447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386436928 + ... + 386724889.

It is an arithmetic number, because the mean of its divisors is an integer number (27830346219819).

Almost surely, 2^{111320611573477} is an apocalyptic number.

It is an amenable number.

111320611573477 is a deficient number, since it is larger than the sum of its proper divisors (773305799).

111320611573477 is an equidigital number, since it uses as much as digits as its factorization.

111320611573477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773305798.

The product of its (nonzero) digits is 740880, while the sum is 49.

Adding to 111320611573477 its reverse (774375116023111), we get a palindrome (885695727596588).

The spelling of 111320611573477 in words is "one hundred eleven trillion, three hundred twenty billion, six hundred eleven million, five hundred seventy-three thousand, four hundred seventy-seven".