1260665522423 has 4 divisors (see below), whose sum is σ = 1261760802048. Its totient is φ = 1259570242800.

The previous prime is 1260665522407. The next prime is 1260665522447. The reversal of 1260665522423 is 3242255660621.

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 1260665522423 - 2⁴ = 1260665522407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260665522453) 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, 547638086 + ... + 547640387.

It is an arithmetic number, because the mean of its divisors is an integer number (315440200512).

Almost surely, 2^{1260665522423} is an apocalyptic number.

1260665522423 is a deficient number, since it is larger than the sum of its proper divisors (1095279625).

1260665522423 is a wasteful number, since it uses less digits than its factorization.

1260665522423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095279624.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 1260665522423 in words is "one trillion, two hundred sixty billion, six hundred sixty-five million, five hundred twenty-two thousand, four hundred twenty-three".