231321211022 has 8 divisors (see below), whose sum is σ = 378525618072. Its totient is φ = 105146005000.

The previous prime is 231321211013. The next prime is 231321211031. The reversal of 231321211022 is 220112123132.

It is an interprime number because it is at equal distance from previous prime (231321211013) and next prime (231321211031).

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

It is a junction number, because it is equal to n+sod(n) for n = 231321210985 and 231321211003.

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, 5257300229 + ... + 5257300272.

It is an arithmetic number, because the mean of its divisors is an integer number (47315702259).

Almost surely, 2^231321211022 is an apocalyptic number.

231321211022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231321211022 is a deficient number, since it is larger than the sum of its proper divisors (147204407050).

231321211022 is a wasteful number, since it uses less digits than its factorization.

231321211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514600514.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 231321211022 its reverse (220112123132), we get a palindrome (451433334154).

The spelling of 231321211022 in words is "two hundred thirty-one billion, three hundred twenty-one million, two hundred eleven thousand, twenty-two".