231030378 has 12 divisors (see below), whose sum is σ = 500565858. Its totient is φ = 77010120.

The previous prime is 231030347. The next prime is 231030403. The reversal of 231030378 is 873030132.

It can be written as a sum of positive squares in only one way, i.e., 183792249 + 47238129 = 13557^2 + 6873^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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, 6417493 + ... + 6417528.

Almost surely, 2^231030378 is an apocalyptic number.

231030378 is an abundant number, since it is smaller than the sum of its proper divisors (269535480).

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

231030378 is a wasteful number, since it uses less digits than its factorization.

231030378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12835029 (or 12835026 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 231030378 is about 15199.6834835466. The cubic root of 231030378 is about 613.6061393389.

The spelling of 231030378 in words is "two hundred thirty-one million, thirty thousand, three hundred seventy-eight".