1273760201055 has 16 divisors (see below), whose sum is σ = 2038140735840. Its totient is φ = 679297302528.

The previous prime is 1273760201053. The next prime is 1273760201093. The reversal of 1273760201055 is 5501020673721.

It is a happy number.

It is not a de Polignac number, because 1273760201055 - 2¹ = 1273760201053 is a prime.

It is a super-2 number, since 2×1273760201055² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273760201053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337250 + ... + 2830239.

It is an arithmetic number, because the mean of its divisors is an integer number (127383795990).

Almost surely, 2^{1273760201055} is an apocalyptic number.

1273760201055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1273760201055 is a deficient number, since it is larger than the sum of its proper divisors (764380534785).

1273760201055 is a wasteful number, since it uses less digits than its factorization.

1273760201055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183930.

The product of its (nonzero) digits is 88200, while the sum is 39.

Adding to 1273760201055 its reverse (5501020673721), we get a palindrome (6774780874776).

The spelling of 1273760201055 in words is "one trillion, two hundred seventy-three billion, seven hundred sixty million, two hundred one thousand, fifty-five".