1012120312 has 32 divisors (see below), whose sum is σ = 2178165600. Its totient is φ = 431898624.

The previous prime is 1012120309. The next prime is 1012120331. The reversal of 1012120312 is 2130212101.

It is a junction number, because it is equal to n+sod(n) for n = 1012120292 and 1012120301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25737 + ... + 51832.

It is an arithmetic number, because the mean of its divisors is an integer number (68067675).

Almost surely, 2^1012120312 is an apocalyptic number.

It is an amenable number.

1012120312 is an abundant number, since it is smaller than the sum of its proper divisors (1166045288).

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

1012120312 is a wasteful number, since it uses less digits than its factorization.

1012120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77815 (or 77811 counting only the distinct ones).

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

The square root of 1012120312 is about 31813.8383726327. The cubic root of 1012120312 is about 1004.0238905867.

Adding to 1012120312 its reverse (2130212101), we get a palindrome (3142332413).

The spelling of 1012120312 in words is "one billion, twelve million, one hundred twenty thousand, three hundred twelve".