344405223123 has 32 divisors (see below), whose sum is σ = 497306514432. Its totient is φ = 210755260800.

The previous prime is 344405223089. The next prime is 344405223131. The reversal of 344405223123 is 321322504443.

It is not a de Polignac number, because 344405223123 - 2²² = 344401028819 is a prime.

It is a super-2 number, since 2×344405223123² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (344405223823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5072586 + ... + 5140032.

It is an arithmetic number, because the mean of its divisors is an integer number (15540828576).

Almost surely, 2^344405223123 is an apocalyptic number.

344405223123 is a deficient number, since it is larger than the sum of its proper divisors (152901291309).

344405223123 is a wasteful number, since it uses less digits than its factorization.

344405223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68195.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 344405223123 its reverse (321322504443), we get a palindrome (665727727566).

The spelling of 344405223123 in words is "three hundred forty-four billion, four hundred five million, two hundred twenty-three thousand, one hundred twenty-three".