1020122461 has 2 divisors, whose sum is σ = 1020122462. Its totient is φ = 1020122460.

The previous prime is 1020122447. The next prime is 1020122479. The reversal of 1020122461 is 1642210201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 973814436 + 46308025 = 31206^2 + 6805^2 .

It is an emirp because it is prime and its reverse (1642210201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020122461 - 2¹³ = 1020114269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020122431) 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, 510061230 + 510061231.

It is an arithmetic number, because the mean of its divisors is an integer number (510061231).

Almost surely, 2^1020122461 is an apocalyptic number.

It is an amenable number.

1020122461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020122461 is an equidigital number, since it uses as much as digits as its factorization.

1020122461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1020122461 is about 31939.3559891241. The cubic root of 1020122461 is about 1006.6629929231.

Adding to 1020122461 its reverse (1642210201), we get a palindrome (2662332662).

The spelling of 1020122461 in words is "one billion, twenty million, one hundred twenty-two thousand, four hundred sixty-one".