231014220 has 24 divisors (see below), whose sum is σ = 646839984. Its totient is φ = 61603776.

The previous prime is 231014197. The next prime is 231014233. The reversal of 231014220 is 22410132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231014220.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1925059 + ... + 1925178.

It is an arithmetic number, because the mean of its divisors is an integer number (26951666).

Almost surely, 2^231014220 is an apocalyptic number.

231014220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231014220 is an abundant number, since it is smaller than the sum of its proper divisors (415825764).

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

231014220 is a wasteful number, since it uses less digits than its factorization.

231014220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850249 (or 3850247 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 231014220 is about 15199.1519500267. The cubic root of 231014220 is about 613.5918340352.

Adding to 231014220 its reverse (22410132), we get a palindrome (253424352).

The spelling of 231014220 in words is "two hundred thirty-one million, fourteen thousand, two hundred twenty".