201203200121031 has 12 divisors (see below), whose sum is σ = 301390801827752. Its totient is φ = 134135466747192.

The previous prime is 201203200120997. The next prime is 201203200121041. The reversal of 201203200121031 is 130121002302102.

201203200121031 is a `hidden beast` number, since 20 + 1 + 203 + 200 + 1 + 210 + 31 = 666.

It is not a de Polignac number, because 201203200121031 - 2⁹ = 201203200120519 is a prime.

It is a super-2 number, since 2×201203200121031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201203200120995 and 201203200121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201203200121041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413998353916 + ... + 413998354401.

Almost surely, 2^{201203200121031} is an apocalyptic number.

201203200121031 is a deficient number, since it is larger than the sum of its proper divisors (100187601706721).

201203200121031 is an frugal number, since it uses more digits than its factorization.

201203200121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827996708332 (or 827996708320 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201203200121031 its reverse (130121002302102), we get a palindrome (331324202423133).

The spelling of 201203200121031 in words is "two hundred one trillion, two hundred three billion, two hundred million, one hundred twenty-one thousand, thirty-one".