144400121121 has 8 divisors (see below), whose sum is σ = 192536001504. Its totient is φ = 96265494080.

The previous prime is 144400121101. The next prime is 144400121137. The reversal of 144400121121 is 121121004441.

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 144400121121 - 2⁶ = 144400121057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144400121101) 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, 361 + ... + 537401.

It is an arithmetic number, because the mean of its divisors is an integer number (24067000188).

Almost surely, 2^144400121121 is an apocalyptic number.

It is an amenable number.

144400121121 is a deficient number, since it is larger than the sum of its proper divisors (48135880383).

144400121121 is an equidigital number, since it uses as much as digits as its factorization.

144400121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626671.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 144400121121 its reverse (121121004441), we get a palindrome (265521125562).

The spelling of 144400121121 in words is "one hundred forty-four billion, four hundred million, one hundred twenty-one thousand, one hundred twenty-one".