1423400241121 has 4 divisors (see below), whose sum is σ = 1424233127700. Its totient is φ = 1422567354544.

The previous prime is 1423400241089. The next prime is 1423400241187. The reversal of 1423400241121 is 1211420043241.

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 639502496721 + 783897744400 = 799689^2 + 885380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423400241121 - 2⁵ = 1423400241089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423400247121) 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, 416440726 + ... + 416444143.

It is an arithmetic number, because the mean of its divisors is an integer number (356058281925).

Almost surely, 2^{1423400241121} is an apocalyptic number.

It is an amenable number.

1423400241121 is a deficient number, since it is larger than the sum of its proper divisors (832886579).

1423400241121 is an equidigital number, since it uses as much as digits as its factorization.

1423400241121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832886578.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1423400241121 its reverse (1211420043241), we get a palindrome (2634820284362).

The spelling of 1423400241121 in words is "one trillion, four hundred twenty-three billion, four hundred million, two hundred forty-one thousand, one hundred twenty-one".