1213030011111 has 8 divisors (see below), whose sum is σ = 1617398630640. Its totient is φ = 808674032832.

The previous prime is 1213030011079. The next prime is 1213030011199. The reversal of 1213030011111 is 1111100303121.

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

It is not a de Polignac number, because 1213030011111 - 2⁵ = 1213030011079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213030011511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2934096 + ... + 3321893.

It is an arithmetic number, because the mean of its divisors is an integer number (202174828830).

Almost surely, 2^{1213030011111} is an apocalyptic number.

1213030011111 is a deficient number, since it is larger than the sum of its proper divisors (404368619529).

1213030011111 is an equidigital number, since it uses as much as digits as its factorization.

1213030011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6320625.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1213030011111 its reverse (1111100303121), we get a palindrome (2324130314232).

The spelling of 1213030011111 in words is "one trillion, two hundred thirteen billion, thirty million, eleven thousand, one hundred eleven".