131021032 has 8 divisors (see below), whose sum is σ = 245664450. Its totient is φ = 65510512.

The previous prime is 131021029. The next prime is 131021069. The reversal of 131021032 is 230120131.

It can be written as a sum of positive squares in only one way, i.e., 89984196 + 41036836 = 9486^2 + 6406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8188807 + ... + 8188822.

Almost surely, 2^131021032 is an apocalyptic number.

It is an amenable number.

131021032 is a deficient number, since it is larger than the sum of its proper divisors (114643418).

131021032 is a wasteful number, since it uses less digits than its factorization.

131021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377635 (or 16377631 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131021032 is about 11446.4418925708. The cubic root of 131021032 is about 507.9024860878.

Adding to 131021032 its reverse (230120131), we get a palindrome (361141163).

Subtracting 131021032 from its reverse (230120131), we obtain a palindrome (99099099).

The spelling of 131021032 in words is "one hundred thirty-one million, twenty-one thousand, thirty-two".