1312332020 has 12 divisors (see below), whose sum is σ = 2755897284. Its totient is φ = 524932800.

The previous prime is 1312332011. The next prime is 1312332029. The reversal of 1312332020 is 202332131.

It is an interprime number because it is at equal distance from previous prime (1312332011) and next prime (1312332029).

It can be written as a sum of positive squares in 2 ways, for example, as 690428176 + 621903844 = 26276^2 + 24938^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1312332020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312332029) 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, 32808281 + ... + 32808320.

It is an arithmetic number, because the mean of its divisors is an integer number (229658107).

Almost surely, 2^1312332020 is an apocalyptic number.

1312332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312332020 is an abundant number, since it is smaller than the sum of its proper divisors (1443565264).

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

1312332020 is a wasteful number, since it uses less digits than its factorization.

1312332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65616610 (or 65616608 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1312332020 is about 36226.1234470375. The cubic root of 1312332020 is about 1094.8330736696.

Adding to 1312332020 its reverse (202332131), we get a palindrome (1514664151).

The spelling of 1312332020 in words is "one billion, three hundred twelve million, three hundred thirty-two thousand, twenty".