131404321334451 has 32 divisors (see below), whose sum is σ = 193047169510656. Its totient is φ = 79500958732800.

The previous prime is 131404321334423. The next prime is 131404321334537. The reversal of 131404321334451 is 154433123404131.

It is a happy number.

It is not a de Polignac number, because 131404321334451 - 2⁶ = 131404321334387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131404321334851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26213085 + ... + 30821006.

It is an arithmetic number, because the mean of its divisors is an integer number (6032724047208).

Almost surely, 2^{131404321334451} is an apocalyptic number.

131404321334451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131404321334451 is a deficient number, since it is larger than the sum of its proper divisors (61642848176205).

131404321334451 is an equidigital number, since it uses as much as digits as its factorization.

131404321334451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57034704 (or 57034682 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 131404321334451 its reverse (154433123404131), we get a palindrome (285837444738582).

The spelling of 131404321334451 in words is "one hundred thirty-one trillion, four hundred four billion, three hundred twenty-one million, three hundred thirty-four thousand, four hundred fifty-one".