123051005340 has 48 divisors (see below), whose sum is σ = 350382533760. Its totient is φ = 32257437760.

The previous prime is 123051005317. The next prime is 123051005347. The reversal of 123051005340 is 43500150321.

It is a self number, because there is not a number n which added to its sum of digits gives 123051005340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123051005347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17376546 + ... + 17383625.

It is an arithmetic number, because the mean of its divisors is an integer number (7299636120).

Almost surely, 2^123051005340 is an apocalyptic number.

123051005340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123051005340 is an abundant number, since it is smaller than the sum of its proper divisors (227331528420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123051005340 is a wasteful number, since it uses less digits than its factorization.

123051005340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34760242 (or 34760240 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 123051005340 its reverse (43500150321), we get a palindrome (166551155661).

The spelling of 123051005340 in words is "one hundred twenty-three billion, fifty-one million, five thousand, three hundred forty".