1023311303320 has 32 divisors (see below), whose sum is σ = 2345892898320. Its totient is φ = 401601416320.

The previous prime is 1023311303317. The next prime is 1023311303351. The reversal of 1023311303320 is 233031133201.

It is a junction number, because it is equal to n+sod(n) for n = 1023311303291 and 1023311303300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241344886 + ... + 241349125.

Almost surely, 2^{1023311303320} is an apocalyptic number.

1023311303320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023311303320 is an abundant number, since it is smaller than the sum of its proper divisors (1322581595000).

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

1023311303320 is a wasteful number, since it uses less digits than its factorization.

1023311303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482694075 (or 482694071 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1023311303320 its reverse (233031133201), we get a palindrome (1256342436521).

The spelling of 1023311303320 in words is "one trillion, twenty-three billion, three hundred eleven million, three hundred three thousand, three hundred twenty".