120203143105 has 16 divisors (see below), whose sum is σ = 145492300800. Its totient is φ = 95333654592.

The previous prime is 120203143097. The next prime is 120203143133. The reversal of 120203143105 is 501341302021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120203143105 - 2³ = 120203143097 is a prime.

It is a super-2 number, since 2×120203143105² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57552 + ... + 493678.

It is an arithmetic number, because the mean of its divisors is an integer number (9093268800).

Almost surely, 2^120203143105 is an apocalyptic number.

It is an amenable number.

120203143105 is a deficient number, since it is larger than the sum of its proper divisors (25289157695).

120203143105 is a wasteful number, since it uses less digits than its factorization.

120203143105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436608.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 120203143105 its reverse (501341302021), we get a palindrome (621544445126).

The spelling of 120203143105 in words is "one hundred twenty billion, two hundred three million, one hundred forty-three thousand, one hundred five".