1100021123867 has 2 divisors, whose sum is σ = 1100021123868. Its totient is φ = 1100021123866.

The previous prime is 1100021123821. The next prime is 1100021123941. The reversal of 1100021123867 is 7683211200011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100021123867 - 2⁸ = 1100021123611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100021120867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550010561933 + 550010561934.

It is an arithmetic number, because the mean of its divisors is an integer number (550010561934).

Almost surely, 2^{1100021123867} is an apocalyptic number.

1100021123867 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100021123867 is an equidigital number, since it uses as much as digits as its factorization.

1100021123867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 1100021123867 its reverse (7683211200011), we get a palindrome (8783232323878).

The spelling of 1100021123867 in words is "one trillion, one hundred billion, twenty-one million, one hundred twenty-three thousand, eight hundred sixty-seven".