231402031442302 has 24 divisors (see below), whose sum is σ = 403774632517320. Its totient is φ = 99171881620560.

The previous prime is 231402031442249. The next prime is 231402031442317. The reversal of 231402031442302 is 203244130204132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19009849 + ... + 28708507.

It is an arithmetic number, because the mean of its divisors is an integer number (16823943021555).

Almost surely, 2^{231402031442302} is an apocalyptic number.

231402031442302 is a deficient number, since it is larger than the sum of its proper divisors (172372601075018).

231402031442302 is a wasteful number, since it uses less digits than its factorization.

231402031442302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942136 (or 9942129 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 231402031442302 its reverse (203244130204132), we get a palindrome (434646161646434).

The spelling of 231402031442302 in words is "two hundred thirty-one trillion, four hundred two billion, thirty-one million, four hundred forty-two thousand, three hundred two".