144400012243031 has 4 divisors (see below), whose sum is σ = 144659258226072. Its totient is φ = 144140766259992.

The previous prime is 144400012243021. The next prime is 144400012243051. The reversal of 144400012243031 is 130342210004441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144400012243031 is a prime.

It is a super-2 number, since 2×144400012243031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144400012242985 and 144400012243003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144400012243021) 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, 129622990685 + ... + 129622991798.

It is an arithmetic number, because the mean of its divisors is an integer number (36164814556518).

Almost surely, 2^{144400012243031} is an apocalyptic number.

144400012243031 is a deficient number, since it is larger than the sum of its proper divisors (259245983041).

144400012243031 is an equidigital number, since it uses as much as digits as its factorization.

144400012243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259245983040.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 144400012243031 its reverse (130342210004441), we get a palindrome (274742222247472).

The spelling of 144400012243031 in words is "one hundred forty-four trillion, four hundred billion, twelve million, two hundred forty-three thousand, thirty-one".