1810442133401 has 8 divisors (see below), whose sum is σ = 1991350327008. Its totient is φ = 1645856483700.

The previous prime is 1810442133397. The next prime is 1810442133431. The reversal of 1810442133401 is 1043312440181.

It is not a de Polignac number, because 1810442133401 - 2² = 1810442133397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1810442133431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680104655 + ... + 680107316.

It is an arithmetic number, because the mean of its divisors is an integer number (248918790876).

Almost surely, 2^{1810442133401} is an apocalyptic number.

1810442133401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1810442133401 is a deficient number, since it is larger than the sum of its proper divisors (180908193607).

1810442133401 is an equidigital number, since it uses as much as digits as its factorization.

1810442133401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360212004 (or 1360211982 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 1810442133401 its reverse (1043312440181), we get a palindrome (2853754573582).

The spelling of 1810442133401 in words is "one trillion, eight hundred ten billion, four hundred forty-two million, one hundred thirty-three thousand, four hundred one".