1011321400241 has 4 divisors (see below), whose sum is σ = 1011549128484. Its totient is φ = 1011093672000.

The previous prime is 1011321400237. The next prime is 1011321400279. The reversal of 1011321400241 is 1420041231101.

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 411477346225 + 599844054016 = 641465^2 + 774496^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011321400241 - 2² = 1011321400237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011321400541) 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, 113857460 + ... + 113866341.

It is an arithmetic number, because the mean of its divisors is an integer number (252887282121).

Almost surely, 2^{1011321400241} is an apocalyptic number.

It is an amenable number.

1011321400241 is a deficient number, since it is larger than the sum of its proper divisors (227728243).

1011321400241 is an equidigital number, since it uses as much as digits as its factorization.

1011321400241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227728242.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1011321400241 its reverse (1420041231101), we get a palindrome (2431362631342).

The spelling of 1011321400241 in words is "one trillion, eleven billion, three hundred twenty-one million, four hundred thousand, two hundred forty-one".