131532121502 has 4 divisors (see below), whose sum is σ = 197298182256. Its totient is φ = 65766060750.

The previous prime is 131532121481. The next prime is 131532121517. The reversal of 131532121502 is 205121235131.

131532121502 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32883030374 + ... + 32883030377.

It is an arithmetic number, because the mean of its divisors is an integer number (49324545564).

Almost surely, 2^131532121502 is an apocalyptic number.

131532121502 is a deficient number, since it is larger than the sum of its proper divisors (65766060754).

131532121502 is an equidigital number, since it uses as much as digits as its factorization.

131532121502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65766060753.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 131532121502 its reverse (205121235131), we get a palindrome (336653356633).

The spelling of 131532121502 in words is "one hundred thirty-one billion, five hundred thirty-two million, one hundred twenty-one thousand, five hundred two".