1269323120055 has 8 divisors (see below), whose sum is σ = 2030916992112. Its totient is φ = 676972330688.

The previous prime is 1269323120041. The next prime is 1269323120063. The reversal of 1269323120055 is 5500213239621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1269323120055 - 2⁹ = 1269323119543 is a prime.

It is a super-2 number, since 2×1269323120055² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1269323119995 and 1269323120022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42310770654 + ... + 42310770683.

It is an arithmetic number, because the mean of its divisors is an integer number (253864624014).

Almost surely, 2^{1269323120055} is an apocalyptic number.

1269323120055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1269323120055 is a deficient number, since it is larger than the sum of its proper divisors (761593872057).

1269323120055 is an equidigital number, since it uses as much as digits as its factorization.

1269323120055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84621541345.

The product of its (nonzero) digits is 97200, while the sum is 39.

Adding to 1269323120055 its reverse (5500213239621), we get a palindrome (6769536359676).

The spelling of 1269323120055 in words is "one trillion, two hundred sixty-nine billion, three hundred twenty-three million, one hundred twenty thousand, fifty-five".