231341328 has 30 divisors (see below), whose sum is σ = 647434814. Its totient is φ = 77113728.

The previous prime is 231341317. The next prime is 231341339. The reversal of 231341328 is 823143132.

It is an interprime number because it is at equal distance from previous prime (231341317) and next prime (231341339).

It can be written as a sum of positive squares in only one way, i.e., 160579584 + 70761744 = 12672^2 + 8412^2 .

It is a super-3 number, since 3×231341328³ (a number of 26 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 803125 + ... + 803412.

Almost surely, 2^231341328 is an apocalyptic number.

It is an amenable number.

231341328 is an abundant number, since it is smaller than the sum of its proper divisors (416093486).

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

231341328 is a wasteful number, since it uses less digits than its factorization.

231341328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606551 (or 1606542 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 231341328 is about 15209.9088754667. The cubic root of 231341328 is about 613.8813055938.

It can be divided in two parts, 2313413 and 28, that added together give a 4-th power (2313441 = 39⁴).

The spelling of 231341328 in words is "two hundred thirty-one million, three hundred forty-one thousand, three hundred twenty-eight".