1245504044041 has 4 divisors (see below), whose sum is σ = 1246947270912. Its totient is φ = 1244060817172.

The previous prime is 1245504044033. The next prime is 1245504044051. The reversal of 1245504044041 is 1404404055421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1245504044041 - 2³ = 1245504044033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1245504043988 and 1245504044006.

It is not an unprimeable number, because it can be changed into a prime (1245504044051) 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, 721612141 + ... + 721613866.

It is an arithmetic number, because the mean of its divisors is an integer number (311736817728).

Almost surely, 2^{1245504044041} is an apocalyptic number.

It is an amenable number.

1245504044041 is a deficient number, since it is larger than the sum of its proper divisors (1443226871).

1245504044041 is an equidigital number, since it uses as much as digits as its factorization.

1245504044041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443226870.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 1245504044041 its reverse (1404404055421), we get a palindrome (2649908099462).

The spelling of 1245504044041 in words is "one trillion, two hundred forty-five billion, five hundred four million, forty-four thousand, forty-one".