1012321232 has 20 divisors (see below), whose sum is σ = 2112247620. Its totient is φ = 467225088.

The previous prime is 1012321207. The next prime is 1012321249. The reversal of 1012321232 is 2321232101.

1012321232 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 297079696 + 715241536 = 17236^2 + 26744^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1012321232.

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, 2433257 + ... + 2433672.

It is an arithmetic number, because the mean of its divisors is an integer number (105612381).

Almost surely, 2^1012321232 is an apocalyptic number.

It is an amenable number.

1012321232 is an abundant number, since it is smaller than the sum of its proper divisors (1099926388).

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

1012321232 is a wasteful number, since it uses less digits than its factorization.

1012321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4866950 (or 4866944 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1012321232 is about 31816.9959612783. The cubic root of 1012321232 is about 1004.0903237734.

Adding to 1012321232 its reverse (2321232101), we get a palindrome (3333553333).

It can be divided in two parts, 101 and 2321232, that multiplied together give a palindrome (234444432).

The spelling of 1012321232 in words is "one billion, twelve million, three hundred twenty-one thousand, two hundred thirty-two".