21011032027 has 2 divisors, whose sum is σ = 21011032028. Its totient is φ = 21011032026.

The previous prime is 21011031997. The next prime is 21011032057. The reversal of 21011032027 is 72023011012.

It is a balanced prime because it is at equal distance from previous prime (21011031997) and next prime (21011032057).

It is a cyclic number.

It is not a de Polignac number, because 21011032027 - 2²³ = 21002643419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21011031995 and 21011032013.

It is not a weakly prime, because it can be changed into another prime (21011032057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505516013 + 10505516014.

It is an arithmetic number, because the mean of its divisors is an integer number (10505516014).

Almost surely, 2^21011032027 is an apocalyptic number.

21011032027 is a deficient number, since it is larger than the sum of its proper divisors (1).

21011032027 is an equidigital number, since it uses as much as digits as its factorization.

21011032027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 21011032027 its reverse (72023011012), we get a palindrome (93034043039).

The spelling of 21011032027 in words is "twenty-one billion, eleven million, thirty-two thousand, twenty-seven".