1213130023219 has 4 divisors (see below), whose sum is σ = 1231236441544. Its totient is φ = 1195023604896.

The previous prime is 1213130023199. The next prime is 1213130023223. The reversal of 1213130023219 is 9123200313121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1213130023219 - 2²¹ = 1213127926067 is a prime.

It is a super-2 number, since 2×1213130023219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213130923219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9053209062 + ... + 9053209195.

It is an arithmetic number, because the mean of its divisors is an integer number (307809110386).

Almost surely, 2^{1213130023219} is an apocalyptic number.

1213130023219 is a deficient number, since it is larger than the sum of its proper divisors (18106418325).

1213130023219 is an equidigital number, since it uses as much as digits as its factorization.

1213130023219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18106418324.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 1213130023219 in words is "one trillion, two hundred thirteen billion, one hundred thirty million, twenty-three thousand, two hundred nineteen".