1312230033220 has 12 divisors (see below), whose sum is σ = 2755683069804. Its totient is φ = 524892013280.

The previous prime is 1312230033217. The next prime is 1312230033221. The reversal of 1312230033220 is 223300322131.

It can be written as a sum of positive squares in 2 ways, for example, as 676552310784 + 635677722436 = 822528^2 + 797294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312230033191 and 1312230033200.

It is not an unprimeable number, because it can be changed into a prime (1312230033221) 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, 32805750811 + ... + 32805750850.

It is an arithmetic number, because the mean of its divisors is an integer number (229640255817).

Almost surely, 2^{1312230033220} is an apocalyptic number.

1312230033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312230033220 is an abundant number, since it is smaller than the sum of its proper divisors (1443453036584).

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

1312230033220 is a wasteful number, since it uses less digits than its factorization.

1312230033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65611501670 (or 65611501668 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1312230033220 its reverse (223300322131), we get a palindrome (1535530355351).

The spelling of 1312230033220 in words is "one trillion, three hundred twelve billion, two hundred thirty million, thirty-three thousand, two hundred twenty".