1045213303523 has 8 divisors (see below), whose sum is σ = 1072091474496. Its totient is φ = 1018401092800.

The previous prime is 1045213303513. The next prime is 1045213303529. The reversal of 1045213303523 is 3253033125401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045213303523 is a prime.

It is a super-2 number, since 2×1045213303523² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045213303523.

It is not an unprimeable number, because it can be changed into a prime (1045213303529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16457963 + ... + 16521348.

It is an arithmetic number, because the mean of its divisors is an integer number (134011434312).

Almost surely, 2^{1045213303523} is an apocalyptic number.

1045213303523 is a deficient number, since it is larger than the sum of its proper divisors (26878170973).

1045213303523 is an equidigital number, since it uses as much as digits as its factorization.

1045213303523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32980125.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 1045213303523 its reverse (3253033125401), we get a palindrome (4298246428924).

The spelling of 1045213303523 in words is "one trillion, forty-five billion, two hundred thirteen million, three hundred three thousand, five hundred twenty-three".