131028067880 has 32 divisors (see below), whose sum is σ = 295960308840. Its totient is φ = 52207288320.

The previous prime is 131028067811. The next prime is 131028067883. The reversal of 131028067880 is 88760820131.

It can be written as a sum of positive squares in 4 ways, for example, as 130692372196 + 335695684 = 361514^2 + 18322^2 .

It is not an unprimeable number, because it can be changed into a prime (131028067883) 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, 6362681 + ... + 6383240.

Almost surely, 2^131028067880 is an apocalyptic number.

131028067880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131028067880 is an abundant number, since it is smaller than the sum of its proper divisors (164932240960).

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

131028067880 is a wasteful number, since it uses less digits than its factorization.

131028067880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12746189 (or 12746185 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 131028067880 in words is "one hundred thirty-one billion, twenty-eight million, sixty-seven thousand, eight hundred eighty".