231322011302 has 4 divisors (see below), whose sum is σ = 346983016956. Its totient is φ = 115661005650.

The previous prime is 231322011301. The next prime is 231322011373. The reversal of 231322011302 is 203110223132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231322011301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57830502824 + ... + 57830502827.

It is an arithmetic number, because the mean of its divisors is an integer number (86745754239).

Almost surely, 2^231322011302 is an apocalyptic number.

231322011302 is a deficient number, since it is larger than the sum of its proper divisors (115661005654).

231322011302 is a wasteful number, since it uses less digits than its factorization.

231322011302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115661005653.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231322011302 its reverse (203110223132), we get a palindrome (434432234434).

The spelling of 231322011302 in words is "two hundred thirty-one billion, three hundred twenty-two million, eleven thousand, three hundred two".