12036621403 has 2 divisors, whose sum is σ = 12036621404. Its totient is φ = 12036621402.

The previous prime is 12036621347. The next prime is 12036621407. The reversal of 12036621403 is 30412663021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12036621403 - 2²⁹ = 11499750491 is a prime.

It is not a weakly prime, because it can be changed into another prime (12036621407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6018310701 + 6018310702.

It is an arithmetic number, because the mean of its divisors is an integer number (6018310702).

Almost surely, 2^12036621403 is an apocalyptic number.

12036621403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12036621403 is an equidigital number, since it uses as much as digits as its factorization.

12036621403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 12036621403 in words is "twelve billion, thirty-six million, six hundred twenty-one thousand, four hundred three".