10313123221220 has 12 divisors (see below), whose sum is σ = 21657558764604. Its totient is φ = 4125249288480.

The previous prime is 10313123221213. The next prime is 10313123221231. The reversal of 10313123221220 is 2212232131301.

It can be written as a sum of positive squares in 2 ways, for example, as 2283562233316 + 8029560987904 = 1511146^2 + 2833648^2 .

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, 257828080511 + ... + 257828080550.

It is an arithmetic number, because the mean of its divisors is an integer number (1804796563717).

Almost surely, 2^{10313123221220} is an apocalyptic number.

10313123221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10313123221220 is an abundant number, since it is smaller than the sum of its proper divisors (11344435543384).

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

10313123221220 is a wasteful number, since it uses less digits than its factorization.

10313123221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515656161070 (or 515656161068 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 10313123221220 its reverse (2212232131301), we get a palindrome (12525355352521).

The spelling of 10313123221220 in words is "ten trillion, three hundred thirteen billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty".