1242152383 has 2 divisors, whose sum is σ = 1242152384. Its totient is φ = 1242152382.

The previous prime is 1242152381. The next prime is 1242152449. The reversal of 1242152383 is 3832512421.

It is a weak prime.

It is an emirp because it is prime and its reverse (3832512421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1242152383 - 2¹ = 1242152381 is a prime.

Together with 1242152381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242152381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621076191 + 621076192.

It is an arithmetic number, because the mean of its divisors is an integer number (621076192).

Almost surely, 2^1242152383 is an apocalyptic number.

1242152383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242152383 is an equidigital number, since it uses as much as digits as its factorization.

1242152383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 1242152383 is about 35244.1822575017. The cubic root of 1242152383 is about 1074.9583205041.

The spelling of 1242152383 in words is "one billion, two hundred forty-two million, one hundred fifty-two thousand, three hundred eighty-three".