1540021133411 has 8 divisors (see below), whose sum is σ = 1555288786800. Its totient is φ = 1524769682688.

The previous prime is 1540021133393. The next prime is 1540021133513. The reversal of 1540021133411 is 1143311200451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1540021133411 - 2⁶ = 1540021133347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540021133111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3859586 + ... + 4239863.

It is an arithmetic number, because the mean of its divisors is an integer number (194411098350).

Almost surely, 2^{1540021133411} is an apocalyptic number.

1540021133411 is a deficient number, since it is larger than the sum of its proper divisors (15267653389).

1540021133411 is a wasteful number, since it uses less digits than its factorization.

1540021133411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8101333.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1540021133411 its reverse (1143311200451), we get a palindrome (2683332333862).

The spelling of 1540021133411 in words is "one trillion, five hundred forty billion, twenty-one million, one hundred thirty-three thousand, four hundred eleven".