131021143323040 has 48 divisors (see below), whose sum is σ = 312728558881032. Its totient is φ = 51868163948544.

The previous prime is 131021143323023. The next prime is 131021143323047. The reversal of 131021143323040 is 40323341120131.

It can be written as a sum of positive squares in 4 ways, for example, as 54978487903504 + 76042655419536 = 7414748^2 + 8720244^2 .

It is not an unprimeable number, because it can be changed into a prime (131021143323047) 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, 4221026469 + ... + 4221057508.

Almost surely, 2^{131021143323040} is an apocalyptic number.

131021143323040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131021143323040 is an abundant number, since it is smaller than the sum of its proper divisors (181707415557992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131021143323040 is an equidigital number, since it uses as much as digits as its factorization.

131021143323040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8442084089 (or 8442084081 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 131021143323040 its reverse (40323341120131), we get a palindrome (171344484443171).

The spelling of 131021143323040 in words is "one hundred thirty-one trillion, twenty-one billion, one hundred forty-three million, three hundred twenty-three thousand, forty".