101312032220 has 24 divisors (see below), whose sum is σ = 243148877664. Its totient is φ = 34735553856.

The previous prime is 101312032187. The next prime is 101312032223. The reversal of 101312032220 is 22230213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101312032223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361828547 + ... + 361828826.

It is an arithmetic number, because the mean of its divisors is an integer number (10131203236).

Almost surely, 2^101312032220 is an apocalyptic number.

101312032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101312032220 is an abundant number, since it is smaller than the sum of its proper divisors (141836845444).

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

101312032220 is a wasteful number, since it uses less digits than its factorization.

101312032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723657389 (or 723657387 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 101312032220 its reverse (22230213101), we get a palindrome (123542245321).

The spelling of 101312032220 in words is "one hundred one billion, three hundred twelve million, thirty-two thousand, two hundred twenty".