1012521308 has 18 divisors (see below), whose sum is σ = 1790434296. Its totient is φ = 501022848.

The previous prime is 1012521239. The next prime is 1012521337. The reversal of 1012521308 is 8031252101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24185 + ... + 51087.

It is an arithmetic number, because the mean of its divisors is an integer number (99468572).

Almost surely, 2^1012521308 is an apocalyptic number.

It is an amenable number.

1012521308 is a deficient number, since it is larger than the sum of its proper divisors (777912988).

1012521308 is an equidigital number, since it uses as much as digits as its factorization.

1012521308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27101 (or 27002 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1012521308 is about 31820.1399745507. The cubic root of 1012521308 is about 1004.1564691614.

Adding to 1012521308 its reverse (8031252101), we get a palindrome (9043773409).

The spelling of 1012521308 in words is "one billion, twelve million, five hundred twenty-one thousand, three hundred eight".