21131411419 has 2 divisors, whose sum is σ = 21131411420. Its totient is φ = 21131411418.

The previous prime is 21131411401. The next prime is 21131411471. The reversal of 21131411419 is 91411413112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21131411419 - 2⁷ = 21131411291 is a prime.

It is a super-2 number, since 2×21131411419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21131411479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10565705709 + 10565705710.

It is an arithmetic number, because the mean of its divisors is an integer number (10565705710).

Almost surely, 2^21131411419 is an apocalyptic number.

21131411419 is a deficient number, since it is larger than the sum of its proper divisors (1).

21131411419 is an equidigital number, since it uses as much as digits as its factorization.

21131411419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 28.

The spelling of 21131411419 in words is "twenty-one billion, one hundred thirty-one million, four hundred eleven thousand, four hundred nineteen".