1111020899 has 2 divisors, whose sum is σ = 1111020900. Its totient is φ = 1111020898.

The previous prime is 1111020893. The next prime is 1111020923. The reversal of 1111020899 is 9980201111.

It is a weak prime.

It is an emirp because it is prime and its reverse (9980201111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111020899 - 2⁸ = 1111020643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111020893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555510449 + 555510450.

It is an arithmetic number, because the mean of its divisors is an integer number (555510450).

Almost surely, 2^1111020899 is an apocalyptic number.

1111020899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111020899 is an equidigital number, since it uses as much as digits as its factorization.

1111020899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 32.

The square root of 1111020899 is about 33331.9801241990. The cubic root of 1111020899 is about 1035.7161368922.

The spelling of 1111020899 in words is "one billion, one hundred eleven million, twenty thousand, eight hundred ninety-nine".