20312000519 has 16 divisors (see below), whose sum is σ = 21590241120. Its totient is φ = 19072771200.

The previous prime is 20312000479. The next prime is 20312000563. The reversal of 20312000519 is 91500021302.

It is a cyclic number.

It is not a de Polignac number, because 20312000519 - 2⁸ = 20312000263 is a prime.

It is a super-2 number, since 2×20312000519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312000494 and 20312000503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312003519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4561244 + ... + 4565694.

It is an arithmetic number, because the mean of its divisors is an integer number (1349390070).

Almost surely, 2^20312000519 is an apocalyptic number.

20312000519 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20312000519 is a deficient number, since it is larger than the sum of its proper divisors (1278240601).

20312000519 is a wasteful number, since it uses less digits than its factorization.

20312000519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770.

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 20312000519 in words is "twenty billion, three hundred twelve million, five hundred nineteen", and thus it is an aban number.