1325553043051 has 4 divisors (see below), whose sum is σ = 1325720270992. Its totient is φ = 1325385815112.

The previous prime is 1325553042973. The next prime is 1325553043091. The reversal of 1325553043051 is 1503403555231.

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

It is a cyclic number.

It is not a de Polignac number, because 1325553043051 - 2¹¹ = 1325553041003 is a prime.

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 1325553043051.

It is not an unprimeable number, because it can be changed into a prime (1325553043091) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 83602080 + ... + 83617933.

It is an arithmetic number, because the mean of its divisors is an integer number (331430067748).

Almost surely, 2^{1325553043051} is an apocalyptic number.

1325553043051 is a deficient number, since it is larger than the sum of its proper divisors (167227941).

1325553043051 is an equidigital number, since it uses as much as digits as its factorization.

1325553043051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167227940.

The product of its (nonzero) digits is 135000, while the sum is 37.

Adding to 1325553043051 its reverse (1503403555231), we get a palindrome (2828956598282).

The spelling of 1325553043051 in words is "one trillion, three hundred twenty-five billion, five hundred fifty-three million, forty-three thousand, fifty-one".