111111006977 has 2 divisors, whose sum is σ = 111111006978. Its totient is φ = 111111006976.

The previous prime is 111111006967. The next prime is 111111007037. The reversal of 111111006977 is 779600111111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110208064576 + 902942401 = 331976^2 + 30049^2 .

It is a cyclic number.

It is not a de Polignac number, because 111111006977 - 2¹⁶ = 111110941441 is a prime.

It is not a weakly prime, because it can be changed into another prime (111111006967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555503488 + 55555503489.

It is an arithmetic number, because the mean of its divisors is an integer number (55555503489).

Almost surely, 2^111111006977 is an apocalyptic number.

It is an amenable number.

111111006977 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111006977 is an equidigital number, since it uses as much as digits as its factorization.

111111006977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 35.

The spelling of 111111006977 in words is "one hundred eleven billion, one hundred eleven million, six thousand, nine hundred seventy-seven".