111020355477 has 12 divisors (see below), whose sum is σ = 162756210240. Its totient is φ = 72908889768.

The previous prime is 111020355461. The next prime is 111020355497. The reversal of 111020355477 is 774553020111.

111020355477 is a `hidden beast` number, since 1 + 1 + 10 + 20 + 3 + 554 + 77 = 666.

It is not a de Polignac number, because 111020355477 - 2⁴ = 111020355461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020355497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92056077 + ... + 92057282.

It is an arithmetic number, because the mean of its divisors is an integer number (13563017520).

Almost surely, 2^111020355477 is an apocalyptic number.

It is an amenable number.

111020355477 is a deficient number, since it is larger than the sum of its proper divisors (51735854763).

111020355477 is a wasteful number, since it uses less digits than its factorization.

111020355477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184113432 (or 184113429 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

Adding to 111020355477 its reverse (774553020111), we get a palindrome (885573375588).

The spelling of 111020355477 in words is "one hundred eleven billion, twenty million, three hundred fifty-five thousand, four hundred seventy-seven".