1312100123229 has 24 divisors (see below), whose sum is σ = 2187452172672. Its totient is φ = 742348015200.

The previous prime is 1312100123227. The next prime is 1312100123231. The reversal of 1312100123229 is 9223210012131.

1312100123229 is a `hidden beast` number, since 1 + 312 + 1 + 0 + 0 + 123 + 229 = 666.

It is an interprime number because it is at equal distance from previous prime (1312100123227) and next prime (1312100123231).

It is not a de Polignac number, because 1312100123229 - 2¹ = 1312100123227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312100123227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103097529 + ... + 103110254.

It is an arithmetic number, because the mean of its divisors is an integer number (91143840528).

Almost surely, 2^{1312100123229} is an apocalyptic number.

It is an amenable number.

1312100123229 is a deficient number, since it is larger than the sum of its proper divisors (875352049443).

1312100123229 is a wasteful number, since it uses less digits than its factorization.

1312100123229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206207897 (or 206207894 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 1312100123229 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred twenty-three thousand, two hundred twenty-nine".