20350149923 has 2 divisors, whose sum is σ = 20350149924. Its totient is φ = 20350149922.

The previous prime is 20350149889. The next prime is 20350149949. The reversal of 20350149923 is 32994105302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20350149923 - 2²⁰ = 20349101347 is a prime.

It is not a weakly prime, because it can be changed into another prime (20350149623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175074961 + 10175074962.

It is an arithmetic number, because the mean of its divisors is an integer number (10175074962).

Almost surely, 2^20350149923 is an apocalyptic number.

20350149923 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350149923 is an equidigital number, since it uses as much as digits as its factorization.

20350149923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 20350149923 in words is "twenty billion, three hundred fifty million, one hundred forty-nine thousand, nine hundred twenty-three".