2101011427 has 2 divisors, whose sum is σ = 2101011428. Its totient is φ = 2101011426.

The previous prime is 2101011389. The next prime is 2101011457. The reversal of 2101011427 is 7241101012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101011427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101011457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050505713 + 1050505714.

It is an arithmetic number, because the mean of its divisors is an integer number (1050505714).

Almost surely, 2^2101011427 is an apocalyptic number.

2101011427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101011427 is an equidigital number, since it uses as much as digits as its factorization.

2101011427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 2101011427 is about 45836.7911944106. The cubic root of 2101011427 is about 1280.7847212510.

Adding to 2101011427 its reverse (7241101012), we get a palindrome (9342112439).

The spelling of 2101011427 in words is "two billion, one hundred one million, eleven thousand, four hundred twenty-seven".