254401111120001 has 4 divisors (see below), whose sum is σ = 269365882362372. Its totient is φ = 239436339877632.

The previous prime is 254401111119949. The next prime is 254401111120061. The reversal of 254401111120001 is 100021111104452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 213765891940225 + 40635219179776 = 14620735^2 + 6374576^2 .

It is a cyclic number.

It is not a de Polignac number, because 254401111120001 - 2²⁶ = 254401044011137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254401111120061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7482385621160 + ... + 7482385621193.

It is an arithmetic number, because the mean of its divisors is an integer number (67341470590593).

Almost surely, 2^{254401111120001} is an apocalyptic number.

It is an amenable number.

254401111120001 is a deficient number, since it is larger than the sum of its proper divisors (14964771242371).

254401111120001 is a wasteful number, since it uses less digits than its factorization.

254401111120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14964771242370.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 254401111120001 its reverse (100021111104452), we get a palindrome (354422222224453).

The spelling of 254401111120001 in words is "two hundred fifty-four trillion, four hundred one billion, one hundred eleven million, one hundred twenty thousand, one".