1103400320291 has 2 divisors, whose sum is σ = 1103400320292. Its totient is φ = 1103400320290.

The previous prime is 1103400320233. The next prime is 1103400320359. The reversal of 1103400320291 is 1920230043011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1103400320291 - 2²² = 1103396125987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103400320291.

It is not a weakly prime, because it can be changed into another prime (1103400370291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551700160145 + 551700160146.

It is an arithmetic number, because the mean of its divisors is an integer number (551700160146).

Almost surely, 2^{1103400320291} is an apocalyptic number.

1103400320291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103400320291 is an equidigital number, since it uses as much as digits as its factorization.

1103400320291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 1103400320291 in words is "one trillion, one hundred three billion, four hundred million, three hundred twenty thousand, two hundred ninety-one".