200123002031 has 2 divisors, whose sum is σ = 200123002032. Its totient is φ = 200123002030.

The previous prime is 200123002021. The next prime is 200123002067. The reversal of 200123002031 is 130200321002.

It is a happy number.

200123002031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200123002031 is a prime.

It is a super-2 number, since 2×200123002031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200123001997 and 200123002015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200123002021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061501015 + 100061501016.

It is an arithmetic number, because the mean of its divisors is an integer number (100061501016).

Almost surely, 2^200123002031 is an apocalyptic number.

200123002031 is a deficient number, since it is larger than the sum of its proper divisors (1).

200123002031 is an equidigital number, since it uses as much as digits as its factorization.

200123002031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 200123002031 its reverse (130200321002), we get a palindrome (330323323033).

The spelling of 200123002031 in words is "two hundred billion, one hundred twenty-three million, two thousand, thirty-one".