123244243031 has 16 divisors (see below), whose sum is σ = 151821144384. Its totient is φ = 97424550144.

The previous prime is 123244243009. The next prime is 123244243037. The reversal of 123244243031 is 130342442321.

It is a cyclic number.

It is not a de Polignac number, because 123244243031 - 2¹⁸ = 123243980887 is a prime.

It is a super-2 number, since 2×123244243031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123244242985 and 123244243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123244243037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504590 + ... + 707883.

It is an arithmetic number, because the mean of its divisors is an integer number (9488821524).

Almost surely, 2^123244243031 is an apocalyptic number.

123244243031 is a deficient number, since it is larger than the sum of its proper divisors (28576901353).

123244243031 is a wasteful number, since it uses less digits than its factorization.

123244243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213610.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 123244243031 its reverse (130342442321), we get a palindrome (253586685352).

The spelling of 123244243031 in words is "one hundred twenty-three billion, two hundred forty-four million, two hundred forty-three thousand, thirty-one".