1254243320001 has 18 divisors (see below), whose sum is σ = 2107470069042. Its totient is φ = 716710468320.

The previous prime is 1254243319969. The next prime is 1254243320081. The reversal of 1254243320001 is 1000233424521.

1254243320001 is a `hidden beast` number, since 1 + 2 + 5 + 424 + 33 + 200 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1201424249025 + 52819070976 = 1096095^2 + 229824^2 .

It is not a de Polignac number, because 1254243320001 - 2⁵ = 1254243319969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1254243320081) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1422044140 + ... + 1422045021.

Almost surely, 2^{1254243320001} is an apocalyptic number.

It is an amenable number.

1254243320001 is a deficient number, since it is larger than the sum of its proper divisors (853226749041).

1254243320001 is a wasteful number, since it uses less digits than its factorization.

1254243320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844089181 (or 2844089171 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1254243320001 its reverse (1000233424521), we get a palindrome (2254476744522).

The spelling of 1254243320001 in words is "one trillion, two hundred fifty-four billion, two hundred forty-three million, three hundred twenty thousand, one".