513321212 has 6 divisors (see below), whose sum is σ = 898312128. Its totient is φ = 256660604.

The previous prime is 513321209. The next prime is 513321217. The reversal of 513321212 is 212123315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513321217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64165148 + ... + 64165155.

It is an arithmetic number, because the mean of its divisors is an integer number (149718688).

Almost surely, 2^513321212 is an apocalyptic number.

It is an amenable number.

513321212 is a deficient number, since it is larger than the sum of its proper divisors (384990916).

513321212 is a wasteful number, since it uses less digits than its factorization.

513321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128330307 (or 128330305 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 513321212 is about 22656.5931242983. The cubic root of 513321212 is about 800.6875401913.

Adding to 513321212 its reverse (212123315), we get a palindrome (725444527).

The spelling of 513321212 in words is "five hundred thirteen million, three hundred twenty-one thousand, two hundred twelve".