1423121341 has 4 divisors (see below), whose sum is σ = 1423205532. Its totient is φ = 1423037152.

The previous prime is 1423121317. The next prime is 1423121351. The reversal of 1423121341 is 1431213241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1431213241 = 673 ⋅2126617.

It can be written as a sum of positive squares in 2 ways, for example, as 938196900 + 484924441 = 30630^2 + 22021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423121341 - 2⁷ = 1423121213 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 (1423121311) 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, 6970 + ... + 53803.

It is an arithmetic number, because the mean of its divisors is an integer number (355801383).

Almost surely, 2^1423121341 is an apocalyptic number.

It is an amenable number.

1423121341 is a deficient number, since it is larger than the sum of its proper divisors (84191).

1423121341 is an equidigital number, since it uses as much as digits as its factorization.

1423121341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84190.

The product of its digits is 576, while the sum is 22.

The square root of 1423121341 is about 37724.2805232916. The cubic root of 1423121341 is about 1124.8138203178.

Adding to 1423121341 its reverse (1431213241), we get a palindrome (2854334582).

The spelling of 1423121341 in words is "one billion, four hundred twenty-three million, one hundred twenty-one thousand, three hundred forty-one".