512312020 has 24 divisors (see below), whose sum is σ = 1173660768. Its totient is φ = 186295200.

The previous prime is 512312011. The next prime is 512312023. The reversal of 512312020 is 20213215.

It is a junction number, because it is equal to n+sod(n) for n = 512311985 and 512312003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512312023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164126 + ... + 1164565.

It is an arithmetic number, because the mean of its divisors is an integer number (48902532).

Almost surely, 2^512312020 is an apocalyptic number.

It is an amenable number.

512312020 is an abundant number, since it is smaller than the sum of its proper divisors (661348748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512312020 is a wasteful number, since it uses less digits than its factorization.

512312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328711 (or 2328709 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 512312020 is about 22634.3106809110. The cubic root of 512312020 is about 800.1624774158.

Adding to 512312020 its reverse (20213215), we get a palindrome (532525235).

The spelling of 512312020 in words is "five hundred twelve million, three hundred twelve thousand, twenty".