131142422220500 has 48 divisors (see below), whose sum is σ = 286427781149328. Its totient is φ = 52454637200000.

The previous prime is 131142422220499. The next prime is 131142422220517. The reversal of 131142422220500 is 5022224241131.

It can be written as a sum of positive squares in 8 ways, for example, as 13192092296464 + 117950329924036 = 3632092^2 + 10860494^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5452550 + ... + 17088450.

It is an arithmetic number, because the mean of its divisors is an integer number (5967245440611).

Almost surely, 2^{131142422220500} is an apocalyptic number.

131142422220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131142422220500 is an abundant number, since it is smaller than the sum of its proper divisors (155285358928828).

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

131142422220500 is a wasteful number, since it uses less digits than its factorization.

131142422220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11658461 (or 11658449 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 131142422220500 its reverse (5022224241131), we get a palindrome (136164646461631).

The spelling of 131142422220500 in words is "one hundred thirty-one trillion, one hundred forty-two billion, four hundred twenty-two million, two hundred twenty thousand, five hundred".