1123272661272 has 16 divisors (see below), whose sum is σ = 2808181653240. Its totient is φ = 374424220416.

The previous prime is 1123272661253. The next prime is 1123272661283. The reversal of 1123272661272 is 2721662723211.

It is a super-2 number, since 2×1123272661272² (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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23401513753 + ... + 23401513800.

Almost surely, 2^{1123272661272} is an apocalyptic number.

1123272661272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123272661272 is an abundant number, since it is smaller than the sum of its proper divisors (1684908991968).

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

1123272661272 is a wasteful number, since it uses less digits than its factorization.

1123272661272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46803027562 (or 46803027558 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The spelling of 1123272661272 in words is "one trillion, one hundred twenty-three billion, two hundred seventy-two million, six hundred sixty-one thousand, two hundred seventy-two".