231231020302 has 8 divisors (see below), whose sum is σ = 346858451712. Its totient is φ = 115611536400.

The previous prime is 231231020249. The next prime is 231231020309. The reversal of 231231020302 is 203020132132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231231020302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231231020309) 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, 1913599 + ... + 2030842.

It is an arithmetic number, because the mean of its divisors is an integer number (43357306464).

Almost surely, 2^231231020302 is an apocalyptic number.

231231020302 is a deficient number, since it is larger than the sum of its proper divisors (115627431410).

231231020302 is a wasteful number, since it uses less digits than its factorization.

231231020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973754.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231231020302 its reverse (203020132132), we get a palindrome (434251152434).

The spelling of 231231020302 in words is "two hundred thirty-one billion, two hundred thirty-one million, twenty thousand, three hundred two".