12400235510 has 32 divisors (see below), whose sum is σ = 24596399520. Its totient is φ = 4472068608.

The previous prime is 12400235443. The next prime is 12400235513. The reversal of 12400235510 is 1553200421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400235513) 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, 1103555 + ... + 1114734.

It is an arithmetic number, because the mean of its divisors is an integer number (768637485).

Almost surely, 2^12400235510 is an apocalyptic number.

12400235510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12400235510 is a deficient number, since it is larger than the sum of its proper divisors (12196164010).

12400235510 is a wasteful number, since it uses less digits than its factorization.

12400235510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218352.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 12400235510 its reverse (1553200421), we get a palindrome (13953435931).

The spelling of 12400235510 in words is "twelve billion, four hundred million, two hundred thirty-five thousand, five hundred ten".