21023402119 has 2 divisors, whose sum is σ = 21023402120. Its totient is φ = 21023402118.

The previous prime is 21023402077. The next prime is 21023402137. The reversal of 21023402119 is 91120432012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21023402119 is a prime.

It is a super-2 number, since 2×21023402119² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21023402093 and 21023402102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21023402219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511701059 + 10511701060.

It is an arithmetic number, because the mean of its divisors is an integer number (10511701060).

Almost surely, 2^21023402119 is an apocalyptic number.

21023402119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023402119 is an equidigital number, since it uses as much as digits as its factorization.

21023402119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 21023402119 in words is "twenty-one billion, twenty-three million, four hundred two thousand, one hundred nineteen".