20423195119 has 2 divisors, whose sum is σ = 20423195120. Its totient is φ = 20423195118.

The previous prime is 20423195113. The next prime is 20423195141. The reversal of 20423195119 is 91159132402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20423195119 - 2²¹ = 20421097967 is a prime.

It is a super-2 number, since 2×20423195119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20423195113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211597559 + 10211597560.

It is an arithmetic number, because the mean of its divisors is an integer number (10211597560).

Almost surely, 2^20423195119 is an apocalyptic number.

20423195119 is a deficient number, since it is larger than the sum of its proper divisors (1).

20423195119 is an equidigital number, since it uses as much as digits as its factorization.

20423195119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 20423195119 in words is "twenty billion, four hundred twenty-three million, one hundred ninety-five thousand, one hundred nineteen".