1031320230330 has 48 divisors (see below), whose sum is σ = 2680212114720. Its totient is φ = 253863440064.

The previous prime is 1031320230323. The next prime is 1031320230361. The reversal of 1031320230330 is 330320231301.

It is a junction number, because it is equal to n+sod(n) for n = 1031320230297 and 1031320230306.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101703040 + ... + 101713179.

It is an arithmetic number, because the mean of its divisors is an integer number (55837752390).

Almost surely, 2^{1031320230330} is an apocalyptic number.

1031320230330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031320230330 is an abundant number, since it is smaller than the sum of its proper divisors (1648891884390).

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

1031320230330 is a wasteful number, since it uses less digits than its factorization.

1031320230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203416255 (or 203416242 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 1031320230330 its reverse (330320231301), we get a palindrome (1361640461631).

The spelling of 1031320230330 in words is "one trillion, thirty-one billion, three hundred twenty million, two hundred thirty thousand, three hundred thirty".