31421341 has 4 divisors (see below), whose sum is σ = 35910112. Its totient is φ = 26932572.

The previous prime is 31421329. The next prime is 31421387. The reversal of 31421341 is 14312413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14312413 = 139 ⋅102967.

It is a cyclic number.

It is not a de Polignac number, because 31421341 - 2⁵ = 31421309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31421311) 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, 2244375 + ... + 2244388.

It is an arithmetic number, because the mean of its divisors is an integer number (8977528).

Almost surely, 2^31421341 is an apocalyptic number.

It is an amenable number.

31421341 is a deficient number, since it is larger than the sum of its proper divisors (4488771).

31421341 is an equidigital number, since it uses as much as digits as its factorization.

31421341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488770.

The product of its digits is 288, while the sum is 19.

The square root of 31421341 is about 5605.4741993876. The cubic root of 31421341 is about 315.5548832384.

Adding to 31421341 its reverse (14312413), we get a palindrome (45733754).

The spelling of 31421341 in words is "thirty-one million, four hundred twenty-one thousand, three hundred forty-one".