1212101111313 has 24 divisors (see below), whose sum is σ = 1759744396800. Its totient is φ = 803951273664.

The previous prime is 1212101111267. The next prime is 1212101111401. The reversal of 1212101111313 is 3131111012121.

1212101111313 is a `hidden beast` number, since 121 + 210 + 11 + 11 + 313 = 666.

It is not a de Polignac number, because 1212101111313 - 2¹⁴ = 1212101094929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212101101313) 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, 2102808 + ... + 2616486.

It is an arithmetic number, because the mean of its divisors is an integer number (73322683200).

Almost surely, 2^{1212101111313} is an apocalyptic number.

It is an amenable number.

1212101111313 is a deficient number, since it is larger than the sum of its proper divisors (547643285487).

1212101111313 is a wasteful number, since it uses less digits than its factorization.

1212101111313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515021 (or 515018 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1212101111313 its reverse (3131111012121), we get a palindrome (4343212123434).

The spelling of 1212101111313 in words is "one trillion, two hundred twelve billion, one hundred one million, one hundred eleven thousand, three hundred thirteen".