1312300021230 has 384 divisors, whose sum is σ = 4203333388800. Its totient is φ = 290993472000.

The previous prime is 1312300021229. The next prime is 1312300021237. The reversal of 1312300021230 is 321200032131.

1312300021230 is a `hidden beast` number, since 1 + 312 + 300 + 0 + 21 + 2 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312300021237) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14683680 + ... + 14772780.

It is an arithmetic number, because the mean of its divisors is an integer number (10946180700).

Almost surely, 2^{1312300021230} is an apocalyptic number.

1312300021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312300021230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2101666694400).

1312300021230 is an abundant number, since it is smaller than the sum of its proper divisors (2891033367570).

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

1312300021230 is a wasteful number, since it uses less digits than its factorization.

1312300021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89182 (or 89170 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1312300021230 its reverse (321200032131), we get a palindrome (1633500053361).

The spelling of 1312300021230 in words is "one trillion, three hundred twelve billion, three hundred million, twenty-one thousand, two hundred thirty".