1311020003133 has 48 divisors (see below), whose sum is σ = 1960408300032. Its totient is φ = 843388416000.

The previous prime is 1311020003131. The next prime is 1311020003147. The reversal of 1311020003133 is 3313000201131.

It is a happy number.

It is not a de Polignac number, because 1311020003133 - 2¹ = 1311020003131 is a prime.

It is a super-2 number, since 2×1311020003133² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311020003131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176898198 + ... + 176905608.

It is an arithmetic number, because the mean of its divisors is an integer number (40841839584).

Almost surely, 2^{1311020003133} is an apocalyptic number.

It is an amenable number.

1311020003133 is a deficient number, since it is larger than the sum of its proper divisors (649388296899).

1311020003133 is a wasteful number, since it uses less digits than its factorization.

1311020003133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186 (or 9183 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1311020003133 its reverse (3313000201131), we get a palindrome (4624020204264).

The spelling of 1311020003133 in words is "one trillion, three hundred eleven billion, twenty million, three thousand, one hundred thirty-three".