231321121102 has 8 divisors (see below), whose sum is σ = 347131832112. Its totient is φ = 115610510400.

The previous prime is 231321121099. The next prime is 231321121117. The reversal of 231321121102 is 201121123132.

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

It is a super-2 number, since 2×231321121102² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231321121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25019299 + ... + 25028542.

It is an arithmetic number, because the mean of its divisors is an integer number (43391479014).

Almost surely, 2^231321121102 is an apocalyptic number.

231321121102 is a deficient number, since it is larger than the sum of its proper divisors (115810711010).

231321121102 is a wasteful number, since it uses less digits than its factorization.

231321121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50050154.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 231321121102 its reverse (201121123132), we get a palindrome (432442244234).

The spelling of 231321121102 in words is "two hundred thirty-one billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred two".