123502343444 has 12 divisors (see below), whose sum is σ = 228842577684. Its totient is φ = 58118749824.

The previous prime is 123502343443. The next prime is 123502343483. The reversal of 123502343444 is 444343205321.

It can be written as a sum of positive squares in 2 ways, for example, as 35849635600 + 87652707844 = 189340^2 + 296062^2 .

It is a super-2 number, since 2×123502343444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123502343443) 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, 908105399 + ... + 908105534.

It is an arithmetic number, because the mean of its divisors is an integer number (19070214807).

Almost surely, 2^123502343444 is an apocalyptic number.

It is an amenable number.

123502343444 is a deficient number, since it is larger than the sum of its proper divisors (105340234240).

123502343444 is a wasteful number, since it uses less digits than its factorization.

123502343444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816210954 (or 1816210952 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 123502343444 its reverse (444343205321), we get a palindrome (567845548765).

The spelling of 123502343444 in words is "one hundred twenty-three billion, five hundred two million, three hundred forty-three thousand, four hundred forty-four".