1021121327 has 2 divisors, whose sum is σ = 1021121328. Its totient is φ = 1021121326.

The previous prime is 1021121293. The next prime is 1021121357. The reversal of 1021121327 is 7231211201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021121327 - 2⁶ = 1021121263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021121299 and 1021121308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021121357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510560663 + 510560664.

It is an arithmetic number, because the mean of its divisors is an integer number (510560664).

Almost surely, 2^1021121327 is an apocalyptic number.

1021121327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021121327 is an equidigital number, since it uses as much as digits as its factorization.

1021121327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1021121327 is about 31954.9890783896. The cubic root of 1021121327 is about 1006.9914480724.

Adding to 1021121327 its reverse (7231211201), we get a palindrome (8252332528).

The spelling of 1021121327 in words is "one billion, twenty-one million, one hundred twenty-one thousand, three hundred twenty-seven".