1242471835229 has 2 divisors, whose sum is σ = 1242471835230. Its totient is φ = 1242471835228.

The previous prime is 1242471835217. The next prime is 1242471835361. The reversal of 1242471835229 is 9225381742421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1241827183129 + 644652100 = 1114373^2 + 25390^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242471835229 - 2³² = 1238176867933 is a prime.

It is a super-2 number, since 2×1242471835229² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242471135229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621235917614 + 621235917615.

It is an arithmetic number, because the mean of its divisors is an integer number (621235917615).

Almost surely, 2^{1242471835229} is an apocalyptic number.

It is an amenable number.

1242471835229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242471835229 is an equidigital number, since it uses as much as digits as its factorization.

1242471835229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 50.

The spelling of 1242471835229 in words is "one trillion, two hundred forty-two billion, four hundred seventy-one million, eight hundred thirty-five thousand, two hundred twenty-nine".