123101231320 has 32 divisors (see below), whose sum is σ = 277851546000. Its totient is φ = 49085154688.

The previous prime is 123101231311. The next prime is 123101231321. The reversal of 123101231320 is 23132101321.

It is a super-3 number, since 3×123101231320³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123101231321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4841470 + ... + 4866829.

Almost surely, 2^123101231320 is an apocalyptic number.

123101231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123101231320 is an abundant number, since it is smaller than the sum of its proper divisors (154750314680).

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

123101231320 is a wasteful number, since it uses less digits than its factorization.

123101231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9708627 (or 9708623 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123101231320 its reverse (23132101321), we get a palindrome (146233332641).

The spelling of 123101231320 in words is "one hundred twenty-three billion, one hundred one million, two hundred thirty-one thousand, three hundred twenty".