111011477957 has 2 divisors, whose sum is σ = 111011477958. Its totient is φ = 111011477956.

The previous prime is 111011477947. The next prime is 111011477999. The reversal of 111011477957 is 759774110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63648225796 + 47363252161 = 252286^2 + 217631^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011477957 - 2¹⁴ = 111011461573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011477947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505738978 + 55505738979.

It is an arithmetic number, because the mean of its divisors is an integer number (55505738979).

Almost surely, 2^111011477957 is an apocalyptic number.

It is an amenable number.

111011477957 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011477957 is an equidigital number, since it uses as much as digits as its factorization.

111011477957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 44.

The spelling of 111011477957 in words is "one hundred eleven billion, eleven million, four hundred seventy-seven thousand, nine hundred fifty-seven".