12013010403 has 4 divisors (see below), whose sum is σ = 16017347208. Its totient is φ = 8008673600.

The previous prime is 12013010329. The next prime is 12013010411. The reversal of 12013010403 is 30401031021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30401031021 = 3 ⋅10133677007.

It is a cyclic number.

It is not a de Polignac number, because 12013010403 - 2¹⁸ = 12012748259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013017403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002168398 + ... + 2002168403.

It is an arithmetic number, because the mean of its divisors is an integer number (4004336802).

Almost surely, 2^12013010403 is an apocalyptic number.

12013010403 is a deficient number, since it is larger than the sum of its proper divisors (4004336805).

12013010403 is an equidigital number, since it uses as much as digits as its factorization.

12013010403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004336804.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12013010403 its reverse (30401031021), we get a palindrome (42414041424).

The spelling of 12013010403 in words is "twelve billion, thirteen million, ten thousand, four hundred three".