2003121000231 has 16 divisors (see below), whose sum is σ = 2975458251360. Its totient is φ = 1190183299200.

The previous prime is 2003121000211. The next prime is 2003121000271. The reversal of 2003121000231 is 1320001213002.

It is not a de Polignac number, because 2003121000231 - 2¹⁹ = 2003120475943 is a prime.

It is a super-2 number, since 2×2003121000231² (a number of 25 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 2003121000231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003121000211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885551920 + ... + 885554181.

It is an arithmetic number, because the mean of its divisors is an integer number (185966140710).

Almost surely, 2^{2003121000231} is an apocalyptic number.

2003121000231 is a deficient number, since it is larger than the sum of its proper divisors (972337251129).

2003121000231 is a wasteful number, since it uses less digits than its factorization.

2003121000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771106146.

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

Adding to 2003121000231 its reverse (1320001213002), we get a palindrome (3323122213233).

The spelling of 2003121000231 in words is "two trillion, three billion, one hundred twenty-one million, two hundred thirty-one", and thus it is an aban number.