231620030 has 8 divisors (see below), whose sum is σ = 416916072. Its totient is φ = 92648008.

The previous prime is 231620027. The next prime is 231620063. The reversal of 231620030 is 30026132.

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

It is a junction number, because it is equal to n+sod(n) for n = 231619990 and 231620008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11580992 + ... + 11581011.

It is an arithmetic number, because the mean of its divisors is an integer number (52114509).

Almost surely, 2^231620030 is an apocalyptic number.

231620030 is a deficient number, since it is larger than the sum of its proper divisors (185296042).

231620030 is a wasteful number, since it uses less digits than its factorization.

231620030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23162010.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231620030 is about 15219.0679740909. The cubic root of 231620030 is about 614.1277254471.

Adding to 231620030 its reverse (30026132), we get a palindrome (261646162).

The spelling of 231620030 in words is "two hundred thirty-one million, six hundred twenty thousand, thirty".