131402322451520 has 224 divisors, whose sum is σ = 316167241680000. Its totient is φ = 52015672229888.

The previous prime is 131402322451513. The next prime is 131402322451523. The reversal of 131402322451520 is 25154223204131.

It is not an unprimeable number, because it can be changed into a prime (131402322451523) 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, 15701073896 + ... + 15701082264.

Almost surely, 2^{131402322451520} is an apocalyptic number.

131402322451520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131402322451520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158083620840000).

131402322451520 is an abundant number, since it is smaller than the sum of its proper divisors (184764919228480).

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

131402322451520 is a wasteful number, since it uses less digits than its factorization.

131402322451520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853 (or 9843 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 131402322451520 its reverse (25154223204131), we get a palindrome (156556545655651).

The spelling of 131402322451520 in words is "one hundred thirty-one trillion, four hundred two billion, three hundred twenty-two million, four hundred fifty-one thousand, five hundred twenty".