1231000332330 has 64 divisors (see below), whose sum is σ = 2972388970368. Its totient is φ = 326274124800.

The previous prime is 1231000332313. The next prime is 1231000332343. The reversal of 1231000332330 is 332330001321.

It is a junction number, because it is equal to n+sod(n) for n = 1231000332297 and 1231000332306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3069430 + ... + 3447230.

It is an arithmetic number, because the mean of its divisors is an integer number (46443577662).

Almost surely, 2^{1231000332330} is an apocalyptic number.

1231000332330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231000332330 is an abundant number, since it is smaller than the sum of its proper divisors (1741388638038).

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

1231000332330 is a wasteful number, since it uses less digits than its factorization.

1231000332330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378471.

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

Adding to 1231000332330 its reverse (332330001321), we get a palindrome (1563330333651).

The spelling of 1231000332330 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-two thousand, three hundred thirty".