1801441123 has 2 divisors, whose sum is σ = 1801441124. Its totient is φ = 1801441122.

The previous prime is 1801441073. The next prime is 1801441133. The reversal of 1801441123 is 3211441081.

It is a strong prime.

It is an emirp because it is prime and its reverse (3211441081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1801441123 - 2⁹ = 1801440611 is a prime.

It is a super-2 number, since 2×1801441123² = 6490380239271002258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1801441133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900720561 + 900720562.

It is an arithmetic number, because the mean of its divisors is an integer number (900720562).

Almost surely, 2^1801441123 is an apocalyptic number.

1801441123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1801441123 is an equidigital number, since it uses as much as digits as its factorization.

1801441123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1801441123 is about 42443.3872705749. The cubic root of 1801441123 is about 1216.7649495968.

The spelling of 1801441123 in words is "one billion, eight hundred one million, four hundred forty-one thousand, one hundred twenty-three".