344401340431 has 2 divisors, whose sum is σ = 344401340432. Its totient is φ = 344401340430.

The previous prime is 344401340419. The next prime is 344401340461. The reversal of 344401340431 is 134043104443.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344401340431 - 2⁵ = 344401340399 is a prime.

It is a super-2 number, since 2×344401340431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344401340393 and 344401340402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344401340411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172200670215 + 172200670216.

It is an arithmetic number, because the mean of its divisors is an integer number (172200670216).

Almost surely, 2^344401340431 is an apocalyptic number.

344401340431 is a deficient number, since it is larger than the sum of its proper divisors (1).

344401340431 is an equidigital number, since it uses as much as digits as its factorization.

344401340431 is an evil number, because the sum of its binary digits is even.

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

Adding to 344401340431 its reverse (134043104443), we get a palindrome (478444444874).

The spelling of 344401340431 in words is "three hundred forty-four billion, four hundred one million, three hundred forty thousand, four hundred thirty-one".