1331044535131 has 16 divisors (see below), whose sum is σ = 1356880352256. Its totient is φ = 1305515075616.

The previous prime is 1331044535101. The next prime is 1331044535147. The reversal of 1331044535131 is 1315354401331.

It is a cyclic number.

It is not a de Polignac number, because 1331044535131 - 2²⁵ = 1331010980699 is a prime.

It is a super-2 number, since 2×1331044535131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331044535101) 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, 4544386 + ... + 4828408.

It is an arithmetic number, because the mean of its divisors is an integer number (84805022016).

Almost surely, 2^{1331044535131} is an apocalyptic number.

1331044535131 is a deficient number, since it is larger than the sum of its proper divisors (25835817125).

1331044535131 is a wasteful number, since it uses less digits than its factorization.

1331044535131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284562.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 1331044535131 its reverse (1315354401331), we get a palindrome (2646398936462).

The spelling of 1331044535131 in words is "one trillion, three hundred thirty-one billion, forty-four million, five hundred thirty-five thousand, one hundred thirty-one".