1020320212 has 12 divisors (see below), whose sum is σ = 1890593460. Its totient is φ = 480150656.

The previous prime is 1020320209. The next prime is 1020320233. The reversal of 1020320212 is 2120230201.

It can be written as a sum of positive squares in 2 ways, for example, as 707879236 + 312440976 = 26606^2 + 17676^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020320192 and 1020320201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7502287 + ... + 7502422.

It is an arithmetic number, because the mean of its divisors is an integer number (157549455).

Almost surely, 2^1020320212 is an apocalyptic number.

It is an amenable number.

1020320212 is a deficient number, since it is larger than the sum of its proper divisors (870273248).

1020320212 is a wasteful number, since it uses less digits than its factorization.

1020320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15004730 (or 15004728 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1020320212 is about 31942.4515652760. The cubic root of 1020320212 is about 1006.7280360133.

Adding to 1020320212 its reverse (2120230201), we get a palindrome (3140550413).

The spelling of 1020320212 in words is "one billion, twenty million, three hundred twenty thousand, two hundred twelve".