1103920591 has 2 divisors, whose sum is σ = 1103920592. Its totient is φ = 1103920590.

The previous prime is 1103920579. The next prime is 1103920603. The reversal of 1103920591 is 1950293011.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1103920579) and next prime (1103920603).

It is a cyclic number.

It is not a de Polignac number, because 1103920591 - 2¹³ = 1103912399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103920511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551960295 + 551960296.

It is an arithmetic number, because the mean of its divisors is an integer number (551960296).

Almost surely, 2^1103920591 is an apocalyptic number.

1103920591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103920591 is an equidigital number, since it uses as much as digits as its factorization.

1103920591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 1103920591 is about 33225.3004651576. The cubic root of 1103920591 is about 1033.5050698146.

The spelling of 1103920591 in words is "one billion, one hundred three million, nine hundred twenty thousand, five hundred ninety-one".