21010140419 has 2 divisors, whose sum is σ = 21010140420. Its totient is φ = 21010140418.

The previous prime is 21010140367. The next prime is 21010140427. The reversal of 21010140419 is 91404101012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21010140419 is a prime.

It is a super-2 number, since 2×21010140419² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21010140394 and 21010140403.

It is not a weakly prime, because it can be changed into another prime (21010140449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505070209 + 10505070210.

It is an arithmetic number, because the mean of its divisors is an integer number (10505070210).

Almost surely, 2^21010140419 is an apocalyptic number.

21010140419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010140419 is an equidigital number, since it uses as much as digits as its factorization.

21010140419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 21010140419 in words is "twenty-one billion, ten million, one hundred forty thousand, four hundred nineteen".