1210123331320 has 32 divisors (see below), whose sum is σ = 2722812437520. Its totient is φ = 484043120640.

The previous prime is 1210123331311. The next prime is 1210123331327. The reversal of 1210123331320 is 231333210121.

It is a junction number, because it is equal to n+sod(n) for n = 1210123331291 and 1210123331300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210123331327) 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, 4176760 + ... + 4457080.

Almost surely, 2^{1210123331320} is an apocalyptic number.

1210123331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210123331320 is an abundant number, since it is smaller than the sum of its proper divisors (1512689106200).

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

1210123331320 is a wasteful number, since it uses less digits than its factorization.

1210123331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388255 (or 388251 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1210123331320 its reverse (231333210121), we get a palindrome (1441456541441).

The spelling of 1210123331320 in words is "one trillion, two hundred ten billion, one hundred twenty-three million, three hundred thirty-one thousand, three hundred twenty".