1012520116 has 12 divisors (see below), whose sum is σ = 1775757060. Its totient is φ = 505160960.

The previous prime is 1012520111. The next prime is 1012520129. The reversal of 1012520116 is 6110252101.

It can be written as a sum of positive squares in 2 ways, for example, as 440832016 + 571688100 = 20996^2 + 23910^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1012520093 and 1012520102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012520111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272701 + ... + 276388.

It is an arithmetic number, because the mean of its divisors is an integer number (147979755).

Almost surely, 2^1012520116 is an apocalyptic number.

It is an amenable number.

1012520116 is a deficient number, since it is larger than the sum of its proper divisors (763236944).

1012520116 is a wasteful number, since it uses less digits than its factorization.

1012520116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549554 (or 549552 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1012520116 is about 31820.1212442693. The cubic root of 1012520116 is about 1004.1560751104.

Adding to 1012520116 its reverse (6110252101), we get a palindrome (7122772217).

The spelling of 1012520116 in words is "one billion, twelve million, five hundred twenty thousand, one hundred sixteen".