1144402040021 has 8 divisors (see below), whose sum is σ = 1161501282144. Its totient is φ = 1127303345520.

The previous prime is 1144402040017. The next prime is 1144402040027. The reversal of 1144402040021 is 1200402044411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144402040021 - 2² = 1144402040017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144402040027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6357371 + ... + 6534903.

It is an arithmetic number, because the mean of its divisors is an integer number (145187660268).

Almost surely, 2^{1144402040021} is an apocalyptic number.

It is an amenable number.

1144402040021 is a deficient number, since it is larger than the sum of its proper divisors (17099242123).

1144402040021 is an equidigital number, since it uses as much as digits as its factorization.

1144402040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273811.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1144402040021 its reverse (1200402044411), we get a palindrome (2344804084432).

The spelling of 1144402040021 in words is "one trillion, one hundred forty-four billion, four hundred two million, forty thousand, twenty-one".