144121561023 has 16 divisors (see below), whose sum is σ = 220664592000. Its totient is φ = 82749221280.

The previous prime is 144121561019. The next prime is 144121561027. The reversal of 144121561023 is 320165121441.

It is an interprime number because it is at equal distance from previous prime (144121561019) and next prime (144121561027).

It is not a de Polignac number, because 144121561023 - 2² = 144121561019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144121561027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114928848 + ... + 114930101.

It is an arithmetic number, because the mean of its divisors is an integer number (13791537000).

Almost surely, 2^144121561023 is an apocalyptic number.

144121561023 is a deficient number, since it is larger than the sum of its proper divisors (76543030977).

144121561023 is a wasteful number, since it uses less digits than its factorization.

144121561023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229858982.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 144121561023 its reverse (320165121441), we get a palindrome (464286682464).

The spelling of 144121561023 in words is "one hundred forty-four billion, one hundred twenty-one million, five hundred sixty-one thousand, twenty-three".