1321052512 has 24 divisors (see below), whose sum is σ = 2800886256. Its totient is φ = 609716352.

The previous prime is 1321052489. The next prime is 1321052519. The reversal of 1321052512 is 2152501231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321052519) 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, 1587388 + ... + 1588219.

It is an arithmetic number, because the mean of its divisors is an integer number (116703594).

Almost surely, 2^1321052512 is an apocalyptic number.

It is an amenable number.

1321052512 is an abundant number, since it is smaller than the sum of its proper divisors (1479833744).

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

1321052512 is a wasteful number, since it uses less digits than its factorization.

1321052512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175630 (or 3175622 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1321052512 is about 36346.2860826247. The cubic root of 1321052512 is about 1097.2527898329.

Adding to 1321052512 its reverse (2152501231), we get a palindrome (3473553743).

The spelling of 1321052512 in words is "one billion, three hundred twenty-one million, fifty-two thousand, five hundred twelve".