2031231532 has 12 divisors (see below), whose sum is σ = 3877805736. Its totient is φ = 923287040.

The previous prime is 2031231529. The next prime is 2031231533. The reversal of 2031231532 is 2351321302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2031231533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23082133 + ... + 23082220.

It is an arithmetic number, because the mean of its divisors is an integer number (323150478).

Almost surely, 2^2031231532 is an apocalyptic number.

2031231532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2031231532 is a deficient number, since it is larger than the sum of its proper divisors (1846574204).

2031231532 is a wasteful number, since it uses less digits than its factorization.

2031231532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46164368 (or 46164366 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2031231532 is about 45069.1860587697. The cubic root of 2031231532 is about 1266.4454166040.

Adding to 2031231532 its reverse (2351321302), we get a palindrome (4382552834).

The spelling of 2031231532 in words is "two billion, thirty-one million, two hundred thirty-one thousand, five hundred thirty-two".