128362232271 has 48 divisors (see below), whose sum is σ = 213838646784. Its totient is φ = 66696353856.

The previous prime is 128362232267. The next prime is 128362232321. The reversal of 128362232271 is 172232263821.

It is not a de Polignac number, because 128362232271 - 2² = 128362232267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128362232171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1173126 + ... + 1277868.

It is an arithmetic number, because the mean of its divisors is an integer number (4454971808).

Almost surely, 2^128362232271 is an apocalyptic number.

128362232271 is a deficient number, since it is larger than the sum of its proper divisors (85476414513).

128362232271 is a wasteful number, since it uses less digits than its factorization.

128362232271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104900 (or 104833 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The spelling of 128362232271 in words is "one hundred twenty-eight billion, three hundred sixty-two million, two hundred thirty-two thousand, two hundred seventy-one".