20356675403 has 2 divisors, whose sum is σ = 20356675404. Its totient is φ = 20356675402.

The previous prime is 20356675399. The next prime is 20356675433. The reversal of 20356675403 is 30457665302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20356675403 - 2² = 20356675399 is a prime.

It is not a weakly prime, because it can be changed into another prime (20356675433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10178337701 + 10178337702.

It is an arithmetic number, because the mean of its divisors is an integer number (10178337702).

Almost surely, 2^20356675403 is an apocalyptic number.

20356675403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20356675403 is an equidigital number, since it uses as much as digits as its factorization.

20356675403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 20356675403 in words is "twenty billion, three hundred fifty-six million, six hundred seventy-five thousand, four hundred three".