3231220131000 has 192 divisors, whose sum is σ = 10956426642720. Its totient is φ = 858905049600.

The previous prime is 3231220130993. The next prime is 3231220131047. The reversal of 3231220131000 is 1310221323.

3231220131000 is a `hidden beast` number, since 323 + 12 + 20 + 1 + 310 + 0 + 0 = 666.

3231220131000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3231220131000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2243479 + ... + 3390521.

Almost surely, 2^{3231220131000} is an apocalyptic number.

3231220131000 is a gapful number since it is divisible by the number (30) 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 3231220131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5478213321360).

3231220131000 is an abundant number, since it is smaller than the sum of its proper divisors (7725206511720).

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

3231220131000 is a wasteful number, since it uses less digits than its factorization.

3231220131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147383 (or 1147366 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 3231220131000 its reverse (1310221323), we get a palindrome (3232530352323).

The spelling of 3231220131000 in words is "three trillion, two hundred thirty-one billion, two hundred twenty million, one hundred thirty-one thousand".