128231602152 has 128 divisors (see below), whose sum is σ = 326593935360. Its totient is φ = 41951669760.

The previous prime is 128231602117. The next prime is 128231602181. The reversal of 128231602152 is 251206132821.

It is a super-2 number, since 2×128231602152² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199426743 + ... + 199427385.

It is an arithmetic number, because the mean of its divisors is an integer number (2551515120).

Almost surely, 2^128231602152 is an apocalyptic number.

128231602152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128231602152 is an abundant number, since it is smaller than the sum of its proper divisors (198362333208).

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

128231602152 is a wasteful number, since it uses less digits than its factorization.

128231602152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 128231602152 its reverse (251206132821), we get a palindrome (379437734973).

The spelling of 128231602152 in words is "one hundred twenty-eight billion, two hundred thirty-one million, six hundred two thousand, one hundred fifty-two".