1234542454321 has 6 divisors (see below), whose sum is σ = 1356976416866. Its totient is φ = 1122311322000.

The previous prime is 1234542454303. The next prime is 1234542454333.

1234542454321 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 1116181685025 + 118360769296 = 1056495^2 + 344036^2 .

It is not a de Polignac number, because 1234542454321 - 2³⁷ = 1097103500849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234542454381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5101414980 + ... + 5101415221.

Almost surely, 2^{1234542454321} is an apocalyptic number.

1234542454321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1234542454321 is a deficient number, since it is larger than the sum of its proper divisors (122433962545).

1234542454321 is a wasteful number, since it uses less digits than its factorization.

1234542454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10202830223 (or 10202830212 counting only the distinct ones).

The product of its digits is 460800, while the sum is 40.

The spelling of 1234542454321 in words is "one trillion, two hundred thirty-four billion, five hundred forty-two million, four hundred fifty-four thousand, three hundred twenty-one".