1234147321 has 16 divisors (see below), whose sum is σ = 1386221760. Its totient is φ = 1088873280.

The previous prime is 1234147319. The next prime is 1234147331. The reversal of 1234147321 is 1237414321.

It is not a de Polignac number, because 1234147321 - 2¹ = 1234147319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1234147321.

It is not an unprimeable number, because it can be changed into a prime (1234147331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 166915 + ... + 174151.

It is an arithmetic number, because the mean of its divisors is an integer number (86638860).

Almost surely, 2^1234147321 is an apocalyptic number.

1234147321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1234147321 is a deficient number, since it is larger than the sum of its proper divisors (152074439).

1234147321 is a wasteful number, since it uses less digits than its factorization.

1234147321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704.

The product of its digits is 4032, while the sum is 28.

The square root of 1234147321 is about 35130.4329748439. The cubic root of 1234147321 is about 1072.6441493335.

The spelling of 1234147321 in words is "one billion, two hundred thirty-four million, one hundred forty-seven thousand, three hundred twenty-one".