1023604102453 has 4 divisors (see below), whose sum is σ = 1026106802380. Its totient is φ = 1021101402528.

The previous prime is 1023604102333. The next prime is 1023604102517. The reversal of 1023604102453 is 3542014063201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 996199617604 + 27404484849 = 998098^2 + 165543^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023604102453 - 2²¹ = 1023602005301 is a prime.

It is a super-2 number, since 2×1023604102453² (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 (1023604702453) 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, 1251349350 + ... + 1251350167.

It is an arithmetic number, because the mean of its divisors is an integer number (256526700595).

Almost surely, 2^{1023604102453} is an apocalyptic number.

It is an amenable number.

1023604102453 is a deficient number, since it is larger than the sum of its proper divisors (2502699927).

1023604102453 is an equidigital number, since it uses as much as digits as its factorization.

1023604102453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502699926.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1023604102453 its reverse (3542014063201), we get a palindrome (4565618165654).

The spelling of 1023604102453 in words is "one trillion, twenty-three billion, six hundred four million, one hundred two thousand, four hundred fifty-three".