1242333111213 has 12 divisors (see below), whose sum is σ = 1794493728508. Its totient is φ = 828216273600.

The previous prime is 1242333111191. The next prime is 1242333111223. The reversal of 1242333111213 is 3121113332421.

1242333111213 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 333 + 111 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67942592964 + 1174390518249 = 260658^2 + 1083693^2 .

It is not a de Polignac number, because 1242333111213 - 2⁸ = 1242333110957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242333111223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1171113 + ... + 1963713.

Almost surely, 2^{1242333111213} is an apocalyptic number.

It is an amenable number.

1242333111213 is a deficient number, since it is larger than the sum of its proper divisors (552160617295).

1242333111213 is a wasteful number, since it uses less digits than its factorization.

1242333111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966764 (or 966761 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 1242333111213 its reverse (3121113332421), we get a palindrome (4363446443634).

The spelling of 1242333111213 in words is "one trillion, two hundred forty-two billion, three hundred thirty-three million, one hundred eleven thousand, two hundred thirteen".