2231231231320 has 128 divisors (see below), whose sum is σ = 6542252841600. Its totient is φ = 664609775616.

The previous prime is 2231231231297. The next prime is 2231231231321. The reversal of 2231231231320 is 231321321322.

It is a super-3 number, since 3×2231231231320³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231231231321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17966815 + ... + 18090574.

It is an arithmetic number, because the mean of its divisors is an integer number (51111350325).

Almost surely, 2^{2231231231320} is an apocalyptic number.

2231231231320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231231231320 is an abundant number, since it is smaller than the sum of its proper divisors (4311021610280).

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

2231231231320 is a wasteful number, since it uses less digits than its factorization.

2231231231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36057437 (or 36057433 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2231231231320 its reverse (231321321322), we get a palindrome (2462552552642).

The spelling of 2231231231320 in words is "two trillion, two hundred thirty-one billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred twenty".