22302131987 has 2 divisors, whose sum is σ = 22302131988. Its totient is φ = 22302131986.

The previous prime is 22302131963. The next prime is 22302132007. The reversal of 22302131987 is 78913120322.

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-22302131987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22302131987.

It is not a weakly prime, because it can be changed into another prime (22302121987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11151065993 + 11151065994.

It is an arithmetic number, because the mean of its divisors is an integer number (11151065994).

Almost surely, 2^22302131987 is an apocalyptic number.

22302131987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22302131987 is an equidigital number, since it uses as much as digits as its factorization.

22302131987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 22302131987 in words is "twenty-two billion, three hundred two million, one hundred thirty-one thousand, nine hundred eighty-seven".