12401134503 has 16 divisors (see below), whose sum is σ = 17267179776. Its totient is φ = 7901815680.

The previous prime is 12401134481. The next prime is 12401134531. The reversal of 12401134503 is 30543110421.

It is a happy number.

It is not a de Polignac number, because 12401134503 - 2¹² = 12401130407 is a prime.

It is a super-2 number, since 2×12401134503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401134553) 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, 20208 + ... + 158778.

It is an arithmetic number, because the mean of its divisors is an integer number (1079198736).

Almost surely, 2^12401134503 is an apocalyptic number.

12401134503 is a deficient number, since it is larger than the sum of its proper divisors (4866045273).

12401134503 is a wasteful number, since it uses less digits than its factorization.

12401134503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139894.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 12401134503 its reverse (30543110421), we get a palindrome (42944244924).

The spelling of 12401134503 in words is "twelve billion, four hundred one million, one hundred thirty-four thousand, five hundred three".