242121034013 has 2 divisors, whose sum is σ = 242121034014. Its totient is φ = 242121034012.

The previous prime is 242121033991. The next prime is 242121034033. The reversal of 242121034013 is 310430121242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173624722489 + 68496311524 = 416683^2 + 261718^2 .

It is a cyclic number.

It is not a de Polignac number, because 242121034013 - 2⁶ = 242121033949 is a prime.

It is a super-2 number, since 2×242121034013² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242121034013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242121034033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121060517006 + 121060517007.

It is an arithmetic number, because the mean of its divisors is an integer number (121060517007).

Almost surely, 2^242121034013 is an apocalyptic number.

It is an amenable number.

242121034013 is a deficient number, since it is larger than the sum of its proper divisors (1).

242121034013 is an equidigital number, since it uses as much as digits as its factorization.

242121034013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 242121034013 its reverse (310430121242), we get a palindrome (552551155255).

The spelling of 242121034013 in words is "two hundred forty-two billion, one hundred twenty-one million, thirty-four thousand, thirteen".