110123400000421 has 4 divisors (see below), whose sum is σ = 110138667358252. Its totient is φ = 110108132642592.

The previous prime is 110123400000377. The next prime is 110123400000473. The reversal of 110123400000421 is 124000004321011.

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 71446953916900 + 38676446083521 = 8452630^2 + 6219039^2 .

It is a cyclic number.

It is not a de Polignac number, because 110123400000421 - 2¹⁵ = 110123399967653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110123400000821) 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, 7633668096 + ... + 7633682521.

It is an arithmetic number, because the mean of its divisors is an integer number (27534666839563).

Almost surely, 2^{110123400000421} is an apocalyptic number.

It is an amenable number.

110123400000421 is a deficient number, since it is larger than the sum of its proper divisors (15267357831).

110123400000421 is an equidigital number, since it uses as much as digits as its factorization.

110123400000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15267357830.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 110123400000421 its reverse (124000004321011), we get a palindrome (234123404321432).

The spelling of 110123400000421 in words is "one hundred ten trillion, one hundred twenty-three billion, four hundred million, four hundred twenty-one", and thus it is an aban number.