1242142242031 has 2 divisors, whose sum is σ = 1242142242032. Its totient is φ = 1242142242030.

The previous prime is 1242142241981. The next prime is 1242142242037. The reversal of 1242142242031 is 1302422412421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242142242031 - 2⁷ = 1242142241903 is a prime.

It is a super-2 number, since 2×1242142242031² (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 (1242142242037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621071121015 + 621071121016.

It is an arithmetic number, because the mean of its divisors is an integer number (621071121016).

Almost surely, 2^{1242142242031} is an apocalyptic number.

1242142242031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242142242031 is an equidigital number, since it uses as much as digits as its factorization.

1242142242031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1242142242031 its reverse (1302422412421), we get a palindrome (2544564654452).

The spelling of 1242142242031 in words is "one trillion, two hundred forty-two billion, one hundred forty-two million, two hundred forty-two thousand, thirty-one".