1144100420531 has 4 divisors (see below), whose sum is σ = 1183552159200. Its totient is φ = 1104648681864.

The previous prime is 1144100420521. The next prime is 1144100420633. The reversal of 1144100420531 is 1350240014411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144100420531 - 2¹⁸ = 1144100158387 is a prime.

It is a super-2 number, since 2×1144100420531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1144100420531.

It is not an unprimeable number, because it can be changed into a prime (1144100420501) 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, 19725869291 + ... + 19725869348.

It is an arithmetic number, because the mean of its divisors is an integer number (295888039800).

Almost surely, 2^{1144100420531} is an apocalyptic number.

1144100420531 is a deficient number, since it is larger than the sum of its proper divisors (39451738669).

1144100420531 is an equidigital number, since it uses as much as digits as its factorization.

1144100420531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39451738668.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1144100420531 its reverse (1350240014411), we get a palindrome (2494340434942).

The spelling of 1144100420531 in words is "one trillion, one hundred forty-four billion, one hundred million, four hundred twenty thousand, five hundred thirty-one".