131013332 has 6 divisors (see below), whose sum is σ = 229273338. Its totient is φ = 65506664.

The previous prime is 131013331. The next prime is 131013343. The reversal of 131013332 is 233310131.

It can be written as a sum of positive squares in only one way, i.e., 127148176 + 3865156 = 11276^2 + 1966^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131013332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131013331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16376663 + ... + 16376670.

It is an arithmetic number, because the mean of its divisors is an integer number (38212223).

Almost surely, 2^131013332 is an apocalyptic number.

It is an amenable number.

131013332 is a deficient number, since it is larger than the sum of its proper divisors (98260006).

131013332 is a wasteful number, since it uses less digits than its factorization.

131013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32753337 (or 32753335 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 131013332 is about 11446.1055385664. The cubic root of 131013332 is about 507.8925362202.

Adding to 131013332 its reverse (233310131), we get a palindrome (364323463).

The spelling of 131013332 in words is "one hundred thirty-one million, thirteen thousand, three hundred thirty-two".