1025321012 has 12 divisors (see below), whose sum is σ = 1794541476. Its totient is φ = 512594880.

The previous prime is 1025321009. The next prime is 1025321021. The reversal of 1025321012 is 2101235201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 287438116 + 737882896 = 16954^2 + 27164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41288 + ... + 61280.

It is an arithmetic number, because the mean of its divisors is an integer number (149545123).

Almost surely, 2^1025321012 is an apocalyptic number.

It is an amenable number.

1025321012 is a deficient number, since it is larger than the sum of its proper divisors (769220464).

1025321012 is a wasteful number, since it uses less digits than its factorization.

1025321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32818 (or 32816 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1025321012 is about 32020.6341598664. The cubic root of 1025321012 is about 1008.3700835698.

Adding to 1025321012 its reverse (2101235201), we get a palindrome (3126556213).

The spelling of 1025321012 in words is "one billion, twenty-five million, three hundred twenty-one thousand, twelve".