1210100010320 has 80 divisors (see below), whose sum is σ = 2828761157520. Its totient is φ = 481412677632.

The previous prime is 1210100010283. The next prime is 1210100010323. The reversal of 1210100010320 is 230100010121.

It can be written as a sum of positive squares in 8 ways, for example, as 1841783056 + 1208258227264 = 42916^2 + 1099208^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210100010323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88263626 + ... + 88277334.

It is an arithmetic number, because the mean of its divisors is an integer number (35359514469).

Almost surely, 2^{1210100010320} is an apocalyptic number.

1210100010320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210100010320 is an abundant number, since it is smaller than the sum of its proper divisors (1618661147200).

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

1210100010320 is a wasteful number, since it uses less digits than its factorization.

1210100010320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19632 (or 19626 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1210100010320 its reverse (230100010121), we get a palindrome (1440200020441).

The spelling of 1210100010320 in words is "one trillion, two hundred ten billion, one hundred million, ten thousand, three hundred twenty".