20613071203 has 2 divisors, whose sum is σ = 20613071204. Its totient is φ = 20613071202.

The previous prime is 20613071191. The next prime is 20613071243. The reversal of 20613071203 is 30217031602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20613071203 - 2¹³ = 20613063011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20613071243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10306535601 + 10306535602.

It is an arithmetic number, because the mean of its divisors is an integer number (10306535602).

Almost surely, 2^20613071203 is an apocalyptic number.

20613071203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20613071203 is an equidigital number, since it uses as much as digits as its factorization.

20613071203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The spelling of 20613071203 in words is "twenty billion, six hundred thirteen million, seventy-one thousand, two hundred three".