1030521012 has 24 divisors (see below), whose sum is σ = 2531104800. Its totient is φ = 325427616.

The previous prime is 1030521001. The next prime is 1030521059. The reversal of 1030521012 is 2101250301.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1030520982 and 1030521000.

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, 2259687 + ... + 2260142.

It is an arithmetic number, because the mean of its divisors is an integer number (105462700).

Almost surely, 2^1030521012 is an apocalyptic number.

1030521012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1030521012 is an abundant number, since it is smaller than the sum of its proper divisors (1500583788).

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

1030521012 is a wasteful number, since it uses less digits than its factorization.

1030521012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519855 (or 4519853 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1030521012 is about 32101.7291123080. The cubic root of 1030521012 is about 1010.0718871814.

Adding to 1030521012 its reverse (2101250301), we get a palindrome (3131771313).

The spelling of 1030521012 in words is "one billion, thirty million, five hundred twenty-one thousand, twelve".