1245504104101 has 2 divisors, whose sum is σ = 1245504104102. Its totient is φ = 1245504104100.

The previous prime is 1245504104059. The next prime is 1245504104123. The reversal of 1245504104101 is 1014014055421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1244951619076 + 552485025 = 1115774^2 + 23505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245504104101 - 2²⁷ = 1245369886373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245504104101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245504104171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622752052050 + 622752052051.

It is an arithmetic number, because the mean of its divisors is an integer number (622752052051).

Almost surely, 2^{1245504104101} is an apocalyptic number.

It is an amenable number.

1245504104101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245504104101 is an equidigital number, since it uses as much as digits as its factorization.

1245504104101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 1245504104101 its reverse (1014014055421), we get a palindrome (2259518159522).

The spelling of 1245504104101 in words is "one trillion, two hundred forty-five billion, five hundred four million, one hundred four thousand, one hundred one".