1272611823102 has 48 divisors (see below), whose sum is σ = 3004166355120. Its totient is φ = 399250763136.

The previous prime is 1272611823073. The next prime is 1272611823163. The reversal of 1272611823102 is 2013281162721.

1272611823102 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 611 + 8 + 2 + 31 + 0 + 2 = 666.

It is a super-2 number, since 2×1272611823102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40757553 + ... + 40788764.

It is an arithmetic number, because the mean of its divisors is an integer number (62586799065).

Almost surely, 2^{1272611823102} is an apocalyptic number.

1272611823102 is an abundant number, since it is smaller than the sum of its proper divisors (1731554532018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1272611823102 is a wasteful number, since it uses less digits than its factorization.

1272611823102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81546362 (or 81546339 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

Adding to 1272611823102 its reverse (2013281162721), we get a palindrome (3285892985823).

The spelling of 1272611823102 in words is "one trillion, two hundred seventy-two billion, six hundred eleven million, eight hundred twenty-three thousand, one hundred two".