200123001031 has 8 divisors (see below), whose sum is σ = 207095788800. Its totient is φ = 193155012960.

The previous prime is 200123000999. The next prime is 200123001061. The reversal of 200123001031 is 130100321002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200123001031 - 2⁵ = 200123000999 is a prime.

It is a super-2 number, since 2×200123001031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200123001061) 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 in 7 ways as a sum of consecutive naturals, for example, 1114980 + ... + 1281961.

It is an arithmetic number, because the mean of its divisors is an integer number (25886973600).

Almost surely, 2^200123001031 is an apocalyptic number.

200123001031 is a deficient number, since it is larger than the sum of its proper divisors (6972787769).

200123001031 is a wasteful number, since it uses less digits than its factorization.

200123001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399849.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 200123001031 its reverse (130100321002), we get a palindrome (330223322033).

The spelling of 200123001031 in words is "two hundred billion, one hundred twenty-three million, one thousand, thirty-one".