231478970112 has 648 divisors, whose sum is σ = 756865794048. Its totient is φ = 67931136000.

The previous prime is 231478970111. The next prime is 231478970183. The reversal of 231478970112 is 211079874132.

It is a super-2 number, since 2×231478970112² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231478970111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1532973237 + ... + 1532973387.

Almost surely, 2^231478970112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231478970112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378432897024).

231478970112 is an abundant number, since it is smaller than the sum of its proper divisors (525386823936).

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

231478970112 is a wasteful number, since it uses less digits than its factorization.

231478970112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 231478970112 in words is "two hundred thirty-one billion, four hundred seventy-eight million, nine hundred seventy thousand, one hundred twelve".