20113229999 has 2 divisors, whose sum is σ = 20113230000. Its totient is φ = 20113229998.

The previous prime is 20113229989. The next prime is 20113230013. The reversal of 20113229999 is 99992231102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20113229999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113229989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056614999 + 10056615000.

It is an arithmetic number, because the mean of its divisors is an integer number (10056615000).

Almost surely, 2^20113229999 is an apocalyptic number.

20113229999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113229999 is an equidigital number, since it uses as much as digits as its factorization.

20113229999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 20113229999 in words is "twenty billion, one hundred thirteen million, two hundred twenty-nine thousand, nine hundred ninety-nine".