1269142963271 has 4 divisors (see below), whose sum is σ = 1269148584000. Its totient is φ = 1269137342544.

The previous prime is 1269142963243. The next prime is 1269142963339. The reversal of 1269142963271 is 1723692419621.

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 1269142963271 - 2³⁴ = 1251963094087 is a prime.

It is a super-2 number, since 2×1269142963271² (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 (1269142968271) 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, 2456846 + ... + 2928203.

It is an arithmetic number, because the mean of its divisors is an integer number (317287146000).

Almost surely, 2^{1269142963271} is an apocalyptic number.

1269142963271 is a deficient number, since it is larger than the sum of its proper divisors (5620729).

1269142963271 is an equidigital number, since it uses as much as digits as its factorization.

1269142963271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620728.

The product of its digits is 1959552, while the sum is 53.

The spelling of 1269142963271 in words is "one trillion, two hundred sixty-nine billion, one hundred forty-two million, nine hundred sixty-three thousand, two hundred seventy-one".