1234554321 has 128 divisors (see below), whose sum is σ = 2333786112. Its totient is φ = 559872000.

The previous prime is 1234554257. The next prime is 1234554329.

1234554321 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1234554321 - 2⁶ = 1234554257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234554329) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4555416 + ... + 4555686.

It is an arithmetic number, because the mean of its divisors is an integer number (18232704).

Almost surely, 2^1234554321 is an apocalyptic number.

1234554321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1234554321 is a deficient number, since it is larger than the sum of its proper divisors (1099231791).

1234554321 is a wasteful number, since it uses less digits than its factorization.

1234554321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its digits is 14400, while the sum is 30.

The square root of 1234554321 is about 35136.2251956581. The cubic root of 1234554321 is about 1072.7620494090.

It can be divided in two parts, 12345 and 54321, that added together give a palindrome (66666).

The spelling of 1234554321 in words is "one billion, two hundred thirty-four million, five hundred fifty-four thousand, three hundred twenty-one".