2120311012 has 6 divisors (see below), whose sum is σ = 3710544278. Its totient is φ = 1060155504.

The previous prime is 2120311007. The next prime is 2120311013. The reversal of 2120311012 is 2101130212.

It can be written as a sum of positive squares in only one way, i.e., 1857092836 + 263218176 = 43094^2 + 16224^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2120310983 and 2120311001.

It is not an unprimeable number, because it can be changed into a prime (2120311013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265038873 + ... + 265038880.

Almost surely, 2^2120311012 is an apocalyptic number.

It is an amenable number.

2120311012 is a deficient number, since it is larger than the sum of its proper divisors (1590233266).

2120311012 is a wasteful number, since it uses less digits than its factorization.

2120311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530077757 (or 530077755 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2120311012 is about 46046.8349835252. The cubic root of 2120311012 is about 1284.6944747447.

Adding to 2120311012 its reverse (2101130212), we get a palindrome (4221441224).

The spelling of 2120311012 in words is "two billion, one hundred twenty million, three hundred eleven thousand, twelve".