231401334 has 8 divisors (see below), whose sum is σ = 462802680. Its totient is φ = 77133776.

The previous prime is 231401333. The next prime is 231401341. The reversal of 231401334 is 433104132.

It is a sphenic number, since it is the product of 3 distinct primes.

231401334 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 231401334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231401333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19283439 + ... + 19283450.

It is an arithmetic number, because the mean of its divisors is an integer number (57850335).

Almost surely, 2^231401334 is an apocalyptic number.

231401334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231401334 is a wasteful number, since it uses less digits than its factorization.

231401334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38566894.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231401334 is about 15211.8813432133. The cubic root of 231401334 is about 613.9343777901.

Adding to 231401334 its reverse (433104132), we get a palindrome (664505466).

The spelling of 231401334 in words is "two hundred thirty-one million, four hundred one thousand, three hundred thirty-four".