1223432011340 has 48 divisors (see below), whose sum is σ = 3203167451904. Its totient is φ = 381329457600.

The previous prime is 1223432011327. The next prime is 1223432011393. The reversal of 1223432011340 is 431102343221.

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 15 ways as a sum of consecutive naturals, for example, 397216646 + ... + 397219725.

It is an arithmetic number, because the mean of its divisors is an integer number (66732655248).

Almost surely, 2^{1223432011340} is an apocalyptic number.

1223432011340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223432011340 is an abundant number, since it is smaller than the sum of its proper divisors (1979735440564).

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

1223432011340 is a wasteful number, since it uses less digits than its factorization.

1223432011340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794436398 (or 794436396 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1223432011340 its reverse (431102343221), we get a palindrome (1654534354561).

The spelling of 1223432011340 in words is "one trillion, two hundred twenty-three billion, four hundred thirty-two million, eleven thousand, three hundred forty".