1312100123230 has 64 divisors (see below), whose sum is σ = 2758755500928. Its totient is φ = 444848394240.

The previous prime is 1312100123227. The next prime is 1312100123231. The reversal of 1312100123230 is 323210012131.

It is a junction number, because it is equal to n+sod(n) for n = 1312100123198 and 1312100123207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312100123231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7149762 + ... + 7330981.

It is an arithmetic number, because the mean of its divisors is an integer number (43105554702).

Almost surely, 2^{1312100123230} is an apocalyptic number.

1312100123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312100123230 is an abundant number, since it is smaller than the sum of its proper divisors (1446655377698).

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

1312100123230 is a wasteful number, since it uses less digits than its factorization.

1312100123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14480821.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312100123230 its reverse (323210012131), we get a palindrome (1635310135361).

The spelling of 1312100123230 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred twenty-three thousand, two hundred thirty".