12072861403 has 4 divisors (see below), whose sum is σ = 12073866640. Its totient is φ = 12071856168.

The previous prime is 12072861397. The next prime is 12072861407. The reversal of 12072861403 is 30416827021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12072861403 - 2¹⁷ = 12072730331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12072861407) 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, 484383 + ... + 508696.

It is an arithmetic number, because the mean of its divisors is an integer number (3018466660).

Almost surely, 2^12072861403 is an apocalyptic number.

12072861403 is a deficient number, since it is larger than the sum of its proper divisors (1005237).

12072861403 is an equidigital number, since it uses as much as digits as its factorization.

12072861403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005236.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 12072861403 in words is "twelve billion, seventy-two million, eight hundred sixty-one thousand, four hundred three".