200123030873 has 2 divisors, whose sum is σ = 200123030874. Its totient is φ = 200123030872.

The previous prime is 200123030857. The next prime is 200123031019. The reversal of 200123030873 is 378030321002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191491134409 + 8631896464 = 437597^2 + 92908^2 .

It is a cyclic number.

It is not a de Polignac number, because 200123030873 - 2⁴ = 200123030857 is a prime.

It is a super-2 number, since 2×200123030873² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200123036873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061515436 + 100061515437.

It is an arithmetic number, because the mean of its divisors is an integer number (100061515437).

Almost surely, 2^200123030873 is an apocalyptic number.

It is an amenable number.

200123030873 is a deficient number, since it is larger than the sum of its proper divisors (1).

200123030873 is an equidigital number, since it uses as much as digits as its factorization.

200123030873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 200123030873 its reverse (378030321002), we get a palindrome (578153351875).

The spelling of 200123030873 in words is "two hundred billion, one hundred twenty-three million, thirty thousand, eight hundred seventy-three".