123240433043 has 16 divisors (see below), whose sum is σ = 151774983360. Its totient is φ = 97448196096.

The previous prime is 123240433033. The next prime is 123240433051. The reversal of 123240433043 is 340334042321.

It is a cyclic number.

It is not a de Polignac number, because 123240433043 - 2¹⁸ = 123240170899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123240432997 and 123240433015.

It is not an unprimeable number, because it can be changed into a prime (123240433033) 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, 274430 + ... + 567267.

It is an arithmetic number, because the mean of its divisors is an integer number (9485936460).

Almost surely, 2^123240433043 is an apocalyptic number.

123240433043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123240433043 is a deficient number, since it is larger than the sum of its proper divisors (28534550317).

123240433043 is a wasteful number, since it uses less digits than its factorization.

123240433043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843326.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 123240433043 its reverse (340334042321), we get a palindrome (463574475364).

The spelling of 123240433043 in words is "one hundred twenty-three billion, two hundred forty million, four hundred thirty-three thousand, forty-three".