231703689536146 has 4 divisors (see below), whose sum is σ = 347555534304222. Its totient is φ = 115851844768072.

The previous prime is 231703689536129. The next prime is 231703689536147. The reversal of 231703689536146 is 641635986307132.

It is a happy number.

231703689536146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 164922742950625 + 66780946585521 = 12842225^2 + 8171961^2 .

It is not an unprimeable number, because it can be changed into a prime (231703689536147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57925922384035 + ... + 57925922384038.

It is a 1-persistent number, because it is pandigital, but 2⋅231703689536146 = 463407379072292 is not.

Almost surely, 2^{231703689536146} is an apocalyptic number.

231703689536146 is a deficient number, since it is larger than the sum of its proper divisors (115851844768076).

231703689536146 is a wasteful number, since it uses less digits than its factorization.

231703689536146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115851844768075.

The product of its (nonzero) digits is 117573120, while the sum is 64.

The spelling of 231703689536146 in words is "two hundred thirty-one trillion, seven hundred three billion, six hundred eighty-nine million, five hundred thirty-six thousand, one hundred forty-six".