201000320977 has 2 divisors, whose sum is σ = 201000320978. Its totient is φ = 201000320976.

The previous prime is 201000320971. The next prime is 201000320987. The reversal of 201000320977 is 779023000102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198444411841 + 2555909136 = 445471^2 + 50556^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000320977 - 2³⁵ = 166640582609 is a prime.

It is a super-2 number, since 2×201000320977² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201000320971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500160488 + 100500160489.

It is an arithmetic number, because the mean of its divisors is an integer number (100500160489).

Almost surely, 2^201000320977 is an apocalyptic number.

It is an amenable number.

201000320977 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000320977 is an equidigital number, since it uses as much as digits as its factorization.

201000320977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The spelling of 201000320977 in words is "two hundred one billion, three hundred twenty thousand, nine hundred seventy-seven".