2031132220 has 48 divisors (see below), whose sum is σ = 4639023648. Its totient is φ = 742521600.

The previous prime is 2031132211. The next prime is 2031132283. The reversal of 2031132220 is 222311302.

It is a junction number, because it is equal to n+sod(n) for n = 2031132194 and 2031132203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12414 + ... + 64933.

It is an arithmetic number, because the mean of its divisors is an integer number (96646326).

Almost surely, 2^2031132220 is an apocalyptic number.

2031132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031132220 is an abundant number, since it is smaller than the sum of its proper divisors (2607891428).

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

2031132220 is a wasteful number, since it uses less digits than its factorization.

2031132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77470 (or 77468 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031132220 is about 45068.0842725759. The cubic root of 2031132220 is about 1266.4247763709.

Adding to 2031132220 its reverse (222311302), we get a palindrome (2253443522).

The spelling of 2031132220 in words is "two billion, thirty-one million, one hundred thirty-two thousand, two hundred twenty".