1242440113151 has 2 divisors, whose sum is σ = 1242440113152. Its totient is φ = 1242440113150.

The previous prime is 1242440113111. The next prime is 1242440113153. The reversal of 1242440113151 is 1513110442421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242440113151 - 2³⁴ = 1225260243967 is a prime.

Together with 1242440113153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242440113153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621220056575 + 621220056576.

It is an arithmetic number, because the mean of its divisors is an integer number (621220056576).

Almost surely, 2^{1242440113151} is an apocalyptic number.

1242440113151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242440113151 is an equidigital number, since it uses as much as digits as its factorization.

1242440113151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 1242440113151 its reverse (1513110442421), we get a palindrome (2755550555572).

The spelling of 1242440113151 in words is "one trillion, two hundred forty-two billion, four hundred forty million, one hundred thirteen thousand, one hundred fifty-one".