302142005531 has 2 divisors, whose sum is σ = 302142005532. Its totient is φ = 302142005530.

The previous prime is 302142005509. The next prime is 302142005549. The reversal of 302142005531 is 135500241203.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302142005531 is a prime.

It is a super-2 number, since 2×302142005531² (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 302142005531.

It is not a weakly prime, because it can be changed into another prime (302142005131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151071002765 + 151071002766.

It is an arithmetic number, because the mean of its divisors is an integer number (151071002766).

Almost surely, 2^302142005531 is an apocalyptic number.

302142005531 is a deficient number, since it is larger than the sum of its proper divisors (1).

302142005531 is an equidigital number, since it uses as much as digits as its factorization.

302142005531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 302142005531 its reverse (135500241203), we get a palindrome (437642246734).

The spelling of 302142005531 in words is "three hundred two billion, one hundred forty-two million, five thousand, five hundred thirty-one".