111203123099977 has 2 divisors, whose sum is σ = 111203123099978. Its totient is φ = 111203123099976.

The previous prime is 111203123099953. The next prime is 111203123100029. The reversal of 111203123099977 is 779990321302111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111118499708176 + 84623391801 = 10541276^2 + 290901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111203123099977 is a prime.

It is a super-2 number, since 2×111203123099977² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111203123094977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55601561549988 + 55601561549989.

It is an arithmetic number, because the mean of its divisors is an integer number (55601561549989).

Almost surely, 2^{111203123099977} is an apocalyptic number.

It is an amenable number.

111203123099977 is a deficient number, since it is larger than the sum of its proper divisors (1).

111203123099977 is an equidigital number, since it uses as much as digits as its factorization.

111203123099977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1285956, while the sum is 55.

The spelling of 111203123099977 in words is "one hundred eleven trillion, two hundred three billion, one hundred twenty-three million, ninety-nine thousand, nine hundred seventy-seven".