1101642427 has 2 divisors, whose sum is σ = 1101642428. Its totient is φ = 1101642426.

The previous prime is 1101642419. The next prime is 1101642491. The reversal of 1101642427 is 7242461011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101642427 - 2³ = 1101642419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101642395 and 1101642404.

It is not a weakly prime, because it can be changed into another prime (1101642527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550821213 + 550821214.

It is an arithmetic number, because the mean of its divisors is an integer number (550821214).

Almost surely, 2^1101642427 is an apocalyptic number.

1101642427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101642427 is an equidigital number, since it uses as much as digits as its factorization.

1101642427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1101642427 is about 33190.9991865265. Note that the first 3 decimals coincide. The cubic root of 1101642427 is about 1032.7936310930.

The spelling of 1101642427 in words is "one billion, one hundred one million, six hundred forty-two thousand, four hundred twenty-seven".