231226329648 has 120 divisors (see below), whose sum is σ = 628791079696. Its totient is φ = 73196928000.

The previous prime is 231226329643. The next prime is 231226329667. The reversal of 231226329648 is 846923622132.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 231226329597 and 231226329606.

It is not an unprimeable number, because it can be changed into a prime (231226329641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2415498 + ... + 2509398.

Almost surely, 2^231226329648 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 231226329648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314395539848).

231226329648 is an abundant number, since it is smaller than the sum of its proper divisors (397564750048).

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

231226329648 is a wasteful number, since it uses less digits than its factorization.

231226329648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94031 (or 93996 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The spelling of 231226329648 in words is "two hundred thirty-one billion, two hundred twenty-six million, three hundred twenty-nine thousand, six hundred forty-eight".