120145031543 has 16 divisors (see below), whose sum is σ = 126020294400. Its totient is φ = 114413584320.

The previous prime is 120145031459. The next prime is 120145031561. The reversal of 120145031543 is 345130541021.

It is a cyclic number.

It is not a de Polignac number, because 120145031543 - 2¹² = 120145027447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120145031593) 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, 2762198 + ... + 2805356.

It is an arithmetic number, because the mean of its divisors is an integer number (7876268400).

Almost surely, 2^120145031543 is an apocalyptic number.

120145031543 is a deficient number, since it is larger than the sum of its proper divisors (5875262857).

120145031543 is a wasteful number, since it uses less digits than its factorization.

120145031543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 120145031543 its reverse (345130541021), we get a palindrome (465275572564).

The spelling of 120145031543 in words is "one hundred twenty billion, one hundred forty-five million, thirty-one thousand, five hundred forty-three".