2031213132 has 96 divisors (see below), whose sum is σ = 5703239360. Its totient is φ = 621457920.

The previous prime is 2031213131. The next prime is 2031213137. The reversal of 2031213132 is 2313121302.

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

It is not an unprimeable number, because it can be changed into a prime (2031213131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250128 + ... + 258120.

Almost surely, 2^2031213132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031213132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2851619680).

2031213132 is an abundant number, since it is smaller than the sum of its proper divisors (3672026228).

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

2031213132 is a wasteful number, since it uses less digits than its factorization.

2031213132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8200 (or 8192 counting only the distinct ones).

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

The square root of 2031213132 is about 45068.9819277072. The cubic root of 2031213132 is about 1266.4415925420.

Adding to 2031213132 its reverse (2313121302), we get a palindrome (4344334434).

The spelling of 2031213132 in words is "two billion, thirty-one million, two hundred thirteen thousand, one hundred thirty-two".