340003234412221 has 4 divisors (see below), whose sum is σ = 340900340572000. Its totient is φ = 339106128252444.

The previous prime is 340003234412209. The next prime is 340003234412249. The reversal of 340003234412221 is 122214432300043.

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.

It is a cyclic number.

It is not a de Polignac number, because 340003234412221 - 2⁴⁷ = 199265746056893 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 (340003234412291) 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, 448553079321 + ... + 448553080078.

It is an arithmetic number, because the mean of its divisors is an integer number (85225085143000).

Almost surely, 2^{340003234412221} is an apocalyptic number.

It is an amenable number.

340003234412221 is a deficient number, since it is larger than the sum of its proper divisors (897106159779).

340003234412221 is an equidigital number, since it uses as much as digits as its factorization.

340003234412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897106159778.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 340003234412221 its reverse (122214432300043), we get a palindrome (462217666712264).

The spelling of 340003234412221 in words is "three hundred forty trillion, three billion, two hundred thirty-four million, four hundred twelve thousand, two hundred twenty-one".