131440332121 has 8 divisors (see below), whose sum is σ = 150224278464. Its totient is φ = 112658074800.

The previous prime is 131440332077. The next prime is 131440332139. The reversal of 131440332121 is 121233044131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131440332121 - 2¹³ = 131440323929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131440302121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250855 + ... + 570796.

It is an arithmetic number, because the mean of its divisors is an integer number (18778034808).

Almost surely, 2^131440332121 is an apocalyptic number.

It is an amenable number.

131440332121 is a deficient number, since it is larger than the sum of its proper divisors (18783946343).

131440332121 is an equidigital number, since it uses as much as digits as its factorization.

131440332121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844511.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131440332121 its reverse (121233044131), we get a palindrome (252673376252).

The spelling of 131440332121 in words is "one hundred thirty-one billion, four hundred forty million, three hundred thirty-two thousand, one hundred twenty-one".