1145123105413 has 16 divisors (see below), whose sum is σ = 1377621760000. Its totient is φ = 929854114992.

The previous prime is 1145123105389. The next prime is 1145123105431. The reversal of 1145123105413 is 3145013215411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1145123105413 - 2²¹ = 1145121008261 is a prime.

It is a super-2 number, since 2×1145123105413² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145123105213) 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, 10505848 + ... + 10614286.

It is an arithmetic number, because the mean of its divisors is an integer number (86101360000).

Almost surely, 2^{1145123105413} is an apocalyptic number.

It is an amenable number.

1145123105413 is a deficient number, since it is larger than the sum of its proper divisors (232498654587).

1145123105413 is a wasteful number, since it uses less digits than its factorization.

1145123105413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187864.

The product of its (nonzero) digits is 7200, while the sum is 31.

It can be divided in two parts, 11451 and 23105413, that added together give a square (23116864 = 4808²).

The spelling of 1145123105413 in words is "one trillion, one hundred forty-five billion, one hundred twenty-three million, one hundred five thousand, four hundred thirteen".