1100091721403 has 2 divisors, whose sum is σ = 1100091721404. Its totient is φ = 1100091721402.

The previous prime is 1100091721361. The next prime is 1100091721429. The reversal of 1100091721403 is 3041271900011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100091721403 - 2⁸ = 1100091721147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1100091721483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550045860701 + 550045860702.

It is an arithmetic number, because the mean of its divisors is an integer number (550045860702).

Almost surely, 2^{1100091721403} is an apocalyptic number.

1100091721403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100091721403 is an equidigital number, since it uses as much as digits as its factorization.

1100091721403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 1100091721403 in words is "one trillion, one hundred billion, ninety-one million, seven hundred twenty-one thousand, four hundred three".