1043216123401 has 4 divisors (see below), whose sum is σ = 1043308774404. Its totient is φ = 1043123472400.

The previous prime is 1043216123393. The next prime is 1043216123419.

1043216123401 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 893620449225 + 149595674176 = 945315^2 + 386776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043216123401 - 2³ = 1043216123393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1043216123401.

It is not an unprimeable number, because it can be changed into a prime (1043216823401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46308610 + ... + 46331131.

It is an arithmetic number, because the mean of its divisors is an integer number (260827193601).

Almost surely, 2^{1043216123401} is an apocalyptic number.

It is an amenable number.

1043216123401 is a deficient number, since it is larger than the sum of its proper divisors (92651003).

1043216123401 is an equidigital number, since it uses as much as digits as its factorization.

1043216123401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92651002.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 1043216123401 in words is "one trillion, forty-three billion, two hundred sixteen million, one hundred twenty-three thousand, four hundred one".