2003112311272 has 16 divisors (see below), whose sum is σ = 3756113728740. Its totient is φ = 1001481983616.

The previous prime is 2003112311147. The next prime is 2003112311273. The reversal of 2003112311272 is 2721132113002.

It can be written as a sum of positive squares in 2 ways, for example, as 1870203942916 + 132908368356 = 1367554^2 + 364566^2 .

It is not an unprimeable number, because it can be changed into a prime (2003112311273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9156643 + ... + 9372850.

Almost surely, 2^{2003112311272} is an apocalyptic number.

It is an amenable number.

2003112311272 is a deficient number, since it is larger than the sum of its proper divisors (1753001417468).

2003112311272 is a wasteful number, since it uses less digits than its factorization.

2003112311272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18543012 (or 18543008 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 2003112311272 its reverse (2721132113002), we get a palindrome (4724244424274).

The spelling of 2003112311272 in words is "two trillion, three billion, one hundred twelve million, three hundred eleven thousand, two hundred seventy-two".