20419381711 has 2 divisors, whose sum is σ = 20419381712. Its totient is φ = 20419381710.

The previous prime is 20419381673. The next prime is 20419381721. The reversal of 20419381711 is 11718391402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20419381711 - 2¹³ = 20419373519 is a prime.

It is a super-2 number, since 2×20419381711² (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 (20419381721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10209690855 + 10209690856.

It is an arithmetic number, because the mean of its divisors is an integer number (10209690856).

Almost surely, 2^20419381711 is an apocalyptic number.

20419381711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20419381711 is an equidigital number, since it uses as much as digits as its factorization.

20419381711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The spelling of 20419381711 in words is "twenty billion, four hundred nineteen million, three hundred eighty-one thousand, seven hundred eleven".