200320121031 has 16 divisors (see below), whose sum is σ = 270770238720. Its totient is φ = 131708617920.

The previous prime is 200320121011. The next prime is 200320121041. The reversal of 200320121031 is 130121023002.

It is not a de Polignac number, because 200320121031 - 2⁶ = 200320120967 is a prime.

It is a super-2 number, since 2×200320121031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200320121031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200320121011) 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 15 ways as a sum of consecutive naturals, for example, 6271780 + ... + 6303638.

It is an arithmetic number, because the mean of its divisors is an integer number (16923139920).

Almost surely, 2^200320121031 is an apocalyptic number.

200320121031 is a deficient number, since it is larger than the sum of its proper divisors (70450117689).

200320121031 is a wasteful number, since it uses less digits than its factorization.

200320121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60646.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 200320121031 its reverse (130121023002), we get a palindrome (330441144033).

The spelling of 200320121031 in words is "two hundred billion, three hundred twenty million, one hundred twenty-one thousand, thirty-one".