1223306256132 has 42 divisors (see below), whose sum is σ = 3209710626878. Its totient is φ = 407768751072.

The previous prime is 1223306256103. The next prime is 1223306256169. The reversal of 1223306256132 is 2316526033221.

1223306256132 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 3 + 0 + 62 + 561 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 844608788676 + 378697467456 = 919026^2 + 615384^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 209754673 + ... + 209760504.

Almost surely, 2^{1223306256132} is an apocalyptic number.

1223306256132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223306256132 is an abundant number, since it is smaller than the sum of its proper divisors (1986404370746).

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

1223306256132 is an equidigital number, since it uses as much as digits as its factorization.

1223306256132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419515199 (or 419515182 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 1223306256132 in words is "one trillion, two hundred twenty-three billion, three hundred six million, two hundred fifty-six thousand, one hundred thirty-two".