231034400323340 has 96 divisors (see below), whose sum is σ = 499300144116480. Its totient is φ = 89743867136000.

The previous prime is 231034400323313. The next prime is 231034400323393. The reversal of 231034400323340 is 43323004430132.

It is a junction number, because it is equal to n+sod(n) for n = 231034400323297 and 231034400323306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456968690 + ... + 457473990.

It is an arithmetic number, because the mean of its divisors is an integer number (5201043167880).

Almost surely, 2^{231034400323340} is an apocalyptic number.

231034400323340 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 231034400323340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249650072058240).

231034400323340 is an abundant number, since it is smaller than the sum of its proper divisors (268265743793140).

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

231034400323340 is a wasteful number, since it uses less digits than its factorization.

231034400323340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507923 (or 507921 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 231034400323340 its reverse (43323004430132), we get a palindrome (274357404753472).

The spelling of 231034400323340 in words is "two hundred thirty-one trillion, thirty-four billion, four hundred million, three hundred twenty-three thousand, three hundred forty".