123042540010 has 32 divisors (see below), whose sum is σ = 240254238672. Its totient is φ = 45099471360.

The previous prime is 123042539999. The next prime is 123042540011. The reversal of 123042540010 is 10045240321.

It can be written as a sum of positive squares in 8 ways, for example, as 69564590001 + 53477950009 = 263751^2 + 231253^2 .

It is a super-2 number, since 2×123042540010² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123042540011) 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, 3436501 + ... + 3472120.

Almost surely, 2^123042540010 is an apocalyptic number.

123042540010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123042540010 is a deficient number, since it is larger than the sum of its proper divisors (117211698662).

123042540010 is a wasteful number, since it uses less digits than its factorization.

123042540010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908778.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 123042540010 its reverse (10045240321), we get a palindrome (133087780331).

The spelling of 123042540010 in words is "one hundred twenty-three billion, forty-two million, five hundred forty thousand, ten".