1032100131220 has 96 divisors (see below), whose sum is σ = 2312464121856. Its totient is φ = 386310134400.

The previous prime is 1032100131149. The next prime is 1032100131247. The reversal of 1032100131220 is 221310012301.

1032100131220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1032100131194 and 1032100131203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2205255 + ... + 2631985.

It is an arithmetic number, because the mean of its divisors is an integer number (24088167936).

Almost surely, 2^{1032100131220} is an apocalyptic number.

1032100131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1032100131220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156232060928).

1032100131220 is an abundant number, since it is smaller than the sum of its proper divisors (1280363990636).

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

1032100131220 is a wasteful number, since it uses less digits than its factorization.

1032100131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426901 (or 426899 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1032100131220 its reverse (221310012301), we get a palindrome (1253410143521).

The spelling of 1032100131220 in words is "one trillion, thirty-two billion, one hundred million, one hundred thirty-one thousand, two hundred twenty".