231213102103320 has 256 divisors, whose sum is σ = 751595558653440. Its totient is φ = 56684229009408.

The previous prime is 231213102103297. The next prime is 231213102103349. The reversal of 231213102103320 is 23301201312132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19832919 + ... + 29253561.

It is an arithmetic number, because the mean of its divisors is an integer number (2935920150990).

Almost surely, 2^{231213102103320} is an apocalyptic number.

231213102103320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231213102103320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375797779326720).

231213102103320 is an abundant number, since it is smaller than the sum of its proper divisors (520382456550120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231213102103320 is a wasteful number, since it uses less digits than its factorization.

231213102103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9420954 (or 9420950 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 231213102103320 its reverse (23301201312132), we get a palindrome (254514303415452).

The spelling of 231213102103320 in words is "two hundred thirty-one trillion, two hundred thirteen billion, one hundred two million, one hundred three thousand, three hundred twenty".