120343135501 has 2 divisors, whose sum is σ = 120343135502. Its totient is φ = 120343135500.

The previous prime is 120343135489. The next prime is 120343135511. The reversal of 120343135501 is 105531343021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120135026025 + 208109476 = 346605^2 + 14426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120343135501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120343135501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120343135511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60171567750 + 60171567751.

It is an arithmetic number, because the mean of its divisors is an integer number (60171567751).

Almost surely, 2^120343135501 is an apocalyptic number.

It is an amenable number.

120343135501 is a deficient number, since it is larger than the sum of its proper divisors (1).

120343135501 is an equidigital number, since it uses as much as digits as its factorization.

120343135501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 120343135501 its reverse (105531343021), we get a palindrome (225874478522).

The spelling of 120343135501 in words is "one hundred twenty billion, three hundred forty-three million, one hundred thirty-five thousand, five hundred one".