1021204061 has 2 divisors, whose sum is σ = 1021204062. Its totient is φ = 1021204060.

The previous prime is 1021204049. The next prime is 1021204103. The reversal of 1021204061 is 1604021201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938503225 + 82700836 = 30635^2 + 9094^2 .

It is an emirp because it is prime and its reverse (1604021201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021204061 - 2²² = 1017009757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021204021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510602030 + 510602031.

It is an arithmetic number, because the mean of its divisors is an integer number (510602031).

Almost surely, 2^1021204061 is an apocalyptic number.

It is an amenable number.

1021204061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021204061 is an equidigital number, since it uses as much as digits as its factorization.

1021204061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1021204061 is about 31956.2835918071. The cubic root of 1021204061 is about 1007.0186437243.

Adding to 1021204061 its reverse (1604021201), we get a palindrome (2625225262).

The spelling of 1021204061 in words is "one billion, twenty-one million, two hundred four thousand, sixty-one".