1201003211331 has 144 divisors (see below), whose sum is σ = 2291928294240. Its totient is φ = 598536207360.

The previous prime is 1201003211323. The next prime is 1201003211371. The reversal of 1201003211331 is 1331123001021.

1201003211331 is a `hidden beast` number, since 1 + 2 + 0 + 10 + 0 + 321 + 1 + 331 = 666.

It is not a de Polignac number, because 1201003211331 - 2³ = 1201003211323 is a prime.

It is a super-2 number, since 2×1201003211331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201003211371) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22059415 + ... + 22113791.

It is an arithmetic number, because the mean of its divisors is an integer number (15916168710).

Almost surely, 2^{1201003211331} is an apocalyptic number.

1201003211331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201003211331 is a deficient number, since it is larger than the sum of its proper divisors (1090925082909).

1201003211331 is a wasteful number, since it uses less digits than its factorization.

1201003211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54594 (or 54584 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1201003211331 its reverse (1331123001021), we get a palindrome (2532126212352).

The spelling of 1201003211331 in words is "one trillion, two hundred one billion, three million, two hundred eleven thousand, three hundred thirty-one".