1331033012111 has 4 divisors (see below), whose sum is σ = 1452036013224. Its totient is φ = 1210030011000.

The previous prime is 1331033012107. The next prime is 1331033012123. The reversal of 1331033012111 is 1112103301331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331033012111 - 2² = 1331033012107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331033012161) 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, 60501500540 + ... + 60501500561.

It is an arithmetic number, because the mean of its divisors is an integer number (363009003306).

Almost surely, 2^{1331033012111} is an apocalyptic number.

1331033012111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1331033012111 is a deficient number, since it is larger than the sum of its proper divisors (121003001113).

1331033012111 is a wasteful number, since it uses less digits than its factorization.

1331033012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121003001112.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1331033012111 its reverse (1112103301331), we get a palindrome (2443136313442).

The spelling of 1331033012111 in words is "one trillion, three hundred thirty-one billion, thirty-three million, twelve thousand, one hundred eleven".