1018120451 has 2 divisors, whose sum is σ = 1018120452. Its totient is φ = 1018120450.

The previous prime is 1018120421. The next prime is 1018120469. The reversal of 1018120451 is 1540218101.

1018120451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1018120451 - 2⁶ = 1018120387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1018120421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509060225 + 509060226.

It is an arithmetic number, because the mean of its divisors is an integer number (509060226).

Almost surely, 2^1018120451 is an apocalyptic number.

1018120451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018120451 is an equidigital number, since it uses as much as digits as its factorization.

1018120451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 1018120451 is about 31907.9997962893. Note that the first 3 decimals coincide. The cubic root of 1018120451 is about 1006.0040298142.

Adding to 1018120451 its reverse (1540218101), we get a palindrome (2558338552).

The spelling of 1018120451 in words is "one billion, eighteen million, one hundred twenty thousand, four hundred fifty-one".