131214518520 has 128 divisors (see below), whose sum is σ = 396362341440. Its totient is φ = 34749665280.

The previous prime is 131214518473. The next prime is 131214518521. The reversal of 131214518520 is 25815412131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131214518521) 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, 11094210 + ... + 11106030.

Almost surely, 2^131214518520 is an apocalyptic number.

131214518520 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 131214518520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198181170720).

131214518520 is an abundant number, since it is smaller than the sum of its proper divisors (265147822920).

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

131214518520 is a wasteful number, since it uses less digits than its factorization.

131214518520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12465 (or 12461 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The spelling of 131214518520 in words is "one hundred thirty-one billion, two hundred fourteen million, five hundred eighteen thousand, five hundred twenty".