131023532 has 12 divisors (see below), whose sum is σ = 229408200. Its totient is φ = 65478336.

The previous prime is 131023523. The next prime is 131023553. The reversal of 131023532 is 235320131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844 + ... + 16292.

It is an arithmetic number, because the mean of its divisors is an integer number (19117350).

Almost surely, 2^131023532 is an apocalyptic number.

It is an amenable number.

131023532 is a deficient number, since it is larger than the sum of its proper divisors (98384668).

131023532 is a wasteful number, since it uses less digits than its factorization.

131023532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16720 (or 16718 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 131023532 is about 11446.5510962910. The cubic root of 131023532 is about 507.9057164804.

Adding to 131023532 its reverse (235320131), we get a palindrome (366343663).

It can be divided in two parts, 1310 and 23532, that added together give a palindrome (24842).

The spelling of 131023532 in words is "one hundred thirty-one million, twenty-three thousand, five hundred thirty-two".