20311419 has 8 divisors (see below), whose sum is σ = 27289152. Its totient is φ = 13437320.

The previous prime is 20311381. The next prime is 20311433. The reversal of 20311419 is 91411302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20311419 - 2⁹ = 20310907 is a prime.

It is a super-2 number, since 2×20311419² = 825107483587122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20311395 and 20311404.

It is not an unprimeable number, because it can be changed into a prime (20311439) 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 in 7 ways as a sum of consecutive naturals, for example, 25449 + ... + 26234.

It is an arithmetic number, because the mean of its divisors is an integer number (3411144).

Almost surely, 2^20311419 is an apocalyptic number.

20311419 is a deficient number, since it is larger than the sum of its proper divisors (6977733).

20311419 is a wasteful number, since it uses less digits than its factorization.

20311419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51817.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 20311419 is about 4506.8191665519. The cubic root of 20311419 is about 272.8433804919.

The spelling of 20311419 in words is "twenty million, three hundred eleven thousand, four hundred nineteen".