1312011331230 has 32 divisors (see below), whose sum is σ = 3188685772800. Its totient is φ = 345440957472.

The previous prime is 1312011331223. The next prime is 1312011331243. The reversal of 1312011331230 is 321331102131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1312011331197 and 1312011331206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276793270 + ... + 276798009.

It is an arithmetic number, because the mean of its divisors is an integer number (99646430400).

Almost surely, 2^{1312011331230} is an apocalyptic number.

1312011331230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312011331230 is an abundant number, since it is smaller than the sum of its proper divisors (1876674441570).

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

1312011331230 is a wasteful number, since it uses less digits than its factorization.

1312011331230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553591368.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1312011331230 its reverse (321331102131), we get a palindrome (1633342433361).

The spelling of 1312011331230 in words is "one trillion, three hundred twelve billion, eleven million, three hundred thirty-one thousand, two hundred thirty".