1001211231230 has 96 divisors (see below), whose sum is σ = 2102377026816. Its totient is φ = 342297586176.

The previous prime is 1001211231217. The next prime is 1001211231269. The reversal of 1001211231230 is 321321121001.

It is a junction number, because it is equal to n+sod(n) for n = 1001211231199 and 1001211231208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 316137107 + ... + 316140273.

It is an arithmetic number, because the mean of its divisors is an integer number (21899760696).

Almost surely, 2^{1001211231230} is an apocalyptic number.

1001211231230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001211231230 is an abundant number, since it is smaller than the sum of its proper divisors (1101165795586).

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

1001211231230 is a wasteful number, since it uses less digits than its factorization.

1001211231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818 (or 4811 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1001211231230 its reverse (321321121001), we get a palindrome (1322532352231).

The spelling of 1001211231230 in words is "one trillion, one billion, two hundred eleven million, two hundred thirty-one thousand, two hundred thirty".