1023123264545 has 8 divisors (see below), whose sum is σ = 1228787507880. Its totient is φ = 817805551360.

The previous prime is 1023123264539. The next prime is 1023123264557. The reversal of 1023123264545 is 5454623213201.

It can be written as a sum of positive squares in 4 ways, for example, as 236923615504 + 786199649041 = 486748^2 + 886679^2 .

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

It is not a de Polignac number, because 1023123264545 - 2¹⁸ = 1023123002401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023123264499 and 1023123264508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86626040 + ... + 86637849.

It is an arithmetic number, because the mean of its divisors is an integer number (153598438485).

Almost surely, 2^{1023123264545} is an apocalyptic number.

It is an amenable number.

1023123264545 is a deficient number, since it is larger than the sum of its proper divisors (205664243335).

1023123264545 is a wasteful number, since it uses less digits than its factorization.

1023123264545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173265075.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 1023123264545 its reverse (5454623213201), we get a palindrome (6477746477746).

The spelling of 1023123264545 in words is "one trillion, twenty-three billion, one hundred twenty-three million, two hundred sixty-four thousand, five hundred forty-five".