1125513241623 has 24 divisors (see below), whose sum is σ = 1632054326448. Its totient is φ = 747429956352.

The previous prime is 1125513241547. The next prime is 1125513241631. The reversal of 1125513241623 is 3261423155211.

1125513241623 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 5 + 1 + 3 + 24 + 1 + 623 = 666.

It is not a de Polignac number, because 1125513241623 - 2⁸ = 1125513241367 is a prime.

It is a super-3 number, since 3×1125513241623³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125513251623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9396436 + ... + 9515462.

It is an arithmetic number, because the mean of its divisors is an integer number (68002263602).

Almost surely, 2^{1125513241623} is an apocalyptic number.

1125513241623 is a deficient number, since it is larger than the sum of its proper divisors (506541084825).

1125513241623 is a wasteful number, since it uses less digits than its factorization.

1125513241623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123103 (or 123100 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 1125513241623 its reverse (3261423155211), we get a palindrome (4386936396834).

The spelling of 1125513241623 in words is "one trillion, one hundred twenty-five billion, five hundred thirteen million, two hundred forty-one thousand, six hundred twenty-three".