287992602101 has 2 divisors, whose sum is σ = 287992602102. Its totient is φ = 287992602100.

The previous prime is 287992602097. The next prime is 287992602173. The reversal of 287992602101 is 101206299782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166504802500 + 121487799601 = 408050^2 + 348551^2 .

It is a cyclic number.

It is not a de Polignac number, because 287992602101 - 2² = 287992602097 is a prime.

It is a super-2 number, since 2×287992602101² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287992602301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143996301050 + 143996301051.

It is an arithmetic number, because the mean of its divisors is an integer number (143996301051).

Almost surely, 2^287992602101 is an apocalyptic number.

It is an amenable number.

287992602101 is a deficient number, since it is larger than the sum of its proper divisors (1).

287992602101 is an equidigital number, since it uses as much as digits as its factorization.

287992602101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 287992602101 in words is "two hundred eighty-seven billion, nine hundred ninety-two million, six hundred two thousand, one hundred one".