1101102491 has 2 divisors, whose sum is σ = 1101102492. Its totient is φ = 1101102490.

The previous prime is 1101102473. The next prime is 1101102533. The reversal of 1101102491 is 1942011011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101102491 - 2²⁶ = 1033993627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101102791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550551245 + 550551246.

It is an arithmetic number, because the mean of its divisors is an integer number (550551246).

Almost surely, 2^1101102491 is an apocalyptic number.

1101102491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101102491 is an equidigital number, since it uses as much as digits as its factorization.

1101102491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1101102491 is about 33182.8644182506. The cubic root of 1101102491 is about 1032.6248728895.

The spelling of 1101102491 in words is "one billion, one hundred one million, one hundred two thousand, four hundred ninety-one".