344031012421 has 2 divisors, whose sum is σ = 344031012422. Its totient is φ = 344031012420.

The previous prime is 344031012397. The next prime is 344031012473. The reversal of 344031012421 is 124210130443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316024989921 + 28006022500 = 562161^2 + 167350^2 .

It is a cyclic number.

It is not a de Polignac number, because 344031012421 - 2⁷ = 344031012293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344031012491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172015506210 + 172015506211.

It is an arithmetic number, because the mean of its divisors is an integer number (172015506211).

Almost surely, 2^344031012421 is an apocalyptic number.

It is an amenable number.

344031012421 is a deficient number, since it is larger than the sum of its proper divisors (1).

344031012421 is an equidigital number, since it uses as much as digits as its factorization.

344031012421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 344031012421 its reverse (124210130443), we get a palindrome (468241142864).

The spelling of 344031012421 in words is "three hundred forty-four billion, thirty-one million, twelve thousand, four hundred twenty-one".