1421331341 has 4 divisors (see below), whose sum is σ = 1422628092. Its totient is φ = 1420034592.

The previous prime is 1421331319. The next prime is 1421331361. The reversal of 1421331341 is 1431331241.

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 251349316 + 1169982025 = 15854^2 + 34205^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421331341 - 2¹⁴ = 1421314957 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 (1421331361) 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, 646730 + ... + 648923.

It is an arithmetic number, because the mean of its divisors is an integer number (355657023).

Almost surely, 2^1421331341 is an apocalyptic number.

It is an amenable number.

1421331341 is a deficient number, since it is larger than the sum of its proper divisors (1296751).

1421331341 is a wasteful number, since it uses less digits than its factorization.

1421331341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296750.

The product of its digits is 864, while the sum is 23.

The square root of 1421331341 is about 37700.5482851377. The cubic root of 1421331341 is about 1124.3420260470.

Adding to 1421331341 its reverse (1431331241), we get a palindrome (2852662582).

It can be divided in two parts, 14213 and 31341, that added together give a palindrome (45554).

The spelling of 1421331341 in words is "one billion, four hundred twenty-one million, three hundred thirty-one thousand, three hundred forty-one".