1213810275147 has 8 divisors (see below), whose sum is σ = 1688779513344. Its totient is φ = 774023943528.

The previous prime is 1213810275143. The next prime is 1213810275151. The reversal of 1213810275147 is 7415720183121.

It is an interprime number because it is at equal distance from previous prime (1213810275143) and next prime (1213810275151).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1213810275147 - 2² = 1213810275143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213810275099 and 1213810275108.

It is not an unprimeable number, because it can be changed into a prime (1213810275143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8795726563 + ... + 8795726700.

It is an arithmetic number, because the mean of its divisors is an integer number (211097439168).

Almost surely, 2^{1213810275147} is an apocalyptic number.

1213810275147 is a deficient number, since it is larger than the sum of its proper divisors (474969238197).

1213810275147 is a wasteful number, since it uses less digits than its factorization.

1213810275147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17591453289.

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 1213810275147 in words is "one trillion, two hundred thirteen billion, eight hundred ten million, two hundred seventy-five thousand, one hundred forty-seven".