1242213211413 has 20 divisors (see below), whose sum is σ = 1890664139628. Its totient is φ = 812516814720.

The previous prime is 1242213211363. The next prime is 1242213211417. The reversal of 1242213211413 is 3141123122421.

1242213211413 is a `hidden beast` number, since 1 + 2 + 4 + 22 + 13 + 211 + 413 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 583807549329 + 658405662084 = 764073^2 + 811422^2 .

It is not a de Polignac number, because 1242213211413 - 2³⁸ = 967335304469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242213211417) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 144674628 + ... + 144683213.

Almost surely, 2^{1242213211413} is an apocalyptic number.

It is an amenable number.

1242213211413 is a deficient number, since it is larger than the sum of its proper divisors (648450928215).

1242213211413 is an equidigital number, since it uses as much as digits as its factorization.

1242213211413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289357906 (or 289357897 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 1242213211413 its reverse (3141123122421), we get a palindrome (4383336333834).

The spelling of 1242213211413 in words is "one trillion, two hundred forty-two billion, two hundred thirteen million, two hundred eleven thousand, four hundred thirteen".