128019107131 has 8 divisors (see below), whose sum is σ = 128271174944. Its totient is φ = 127767144960.

The previous prime is 128019107129. The next prime is 128019107171. The reversal of 128019107131 is 131701910821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128019107131 - 2¹ = 128019107129 is a prime.

It is a super-2 number, since 2×128019107131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128019107171) 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, 2666761 + ... + 2714341.

It is an arithmetic number, because the mean of its divisors is an integer number (16033896868).

Almost surely, 2^128019107131 is an apocalyptic number.

128019107131 is a deficient number, since it is larger than the sum of its proper divisors (252067813).

128019107131 is an equidigital number, since it uses as much as digits as its factorization.

128019107131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52821.

The product of its (nonzero) digits is 3024, while the sum is 34.

The spelling of 128019107131 in words is "one hundred twenty-eight billion, nineteen million, one hundred seven thousand, one hundred thirty-one".