145310021111143 has 32 divisors (see below), whose sum is σ = 169511789187072. Its totient is φ = 121977823968000.

The previous prime is 145310021111093. The next prime is 145310021111207. The reversal of 145310021111143 is 341111120013541.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-145310021111143 is a prime.

It is a super-2 number, since 2×145310021111143² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145310024111143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550695880 + ... + 550959682.

It is an arithmetic number, because the mean of its divisors is an integer number (5297243412096).

Almost surely, 2^{145310021111143} is an apocalyptic number.

145310021111143 is a deficient number, since it is larger than the sum of its proper divisors (24201768075929).

145310021111143 is a wasteful number, since it uses less digits than its factorization.

145310021111143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266575.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 145310021111143 its reverse (341111120013541), we get a palindrome (486421141124684).

The spelling of 145310021111143 in words is "one hundred forty-five trillion, three hundred ten billion, twenty-one million, one hundred eleven thousand, one hundred forty-three".