1145123105411 has 4 divisors (see below), whose sum is σ = 1162214495112. Its totient is φ = 1128031715712.

The previous prime is 1145123105389. The next prime is 1145123105431. The reversal of 1145123105411 is 1145013215411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145123105411 is a prime.

It is a super-2 number, since 2×1145123105411² (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 (1145123105431) 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, 8545694750 + ... + 8545694883.

It is an arithmetic number, because the mean of its divisors is an integer number (290553623778).

Almost surely, 2^{1145123105411} is an apocalyptic number.

1145123105411 is a deficient number, since it is larger than the sum of its proper divisors (17091389701).

1145123105411 is an equidigital number, since it uses as much as digits as its factorization.

1145123105411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17091389700.

The product of its (nonzero) digits is 2400, while the sum is 29.

The spelling of 1145123105411 in words is "one trillion, one hundred forty-five billion, one hundred twenty-three million, one hundred five thousand, four hundred eleven".