1423120081 has 2 divisors, whose sum is σ = 1423120082. Its totient is φ = 1423120080.

The previous prime is 1423120037. The next prime is 1423120151. The reversal of 1423120081 is 1800213241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1392483856 + 30636225 = 37316^2 + 5535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423120081 - 2¹⁵ = 1423087313 is a prime.

It is a super-2 number, since 2×1423120081² = 4050541529890893122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1423120681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711560040 + 711560041.

It is an arithmetic number, because the mean of its divisors is an integer number (711560041).

Almost surely, 2^1423120081 is an apocalyptic number.

It is an amenable number.

1423120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423120081 is an equidigital number, since it uses as much as digits as its factorization.

1423120081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1423120081 is about 37724.2638231682. The cubic root of 1423120081 is about 1124.8134883560.

The spelling of 1423120081 in words is "one billion, four hundred twenty-three million, one hundred twenty thousand, eighty-one".