120040143122515 has 24 divisors (see below), whose sum is σ = 182799535208112. Its totient is φ = 74830219087680.

The previous prime is 120040143122513. The next prime is 120040143122519. The reversal of 120040143122515 is 515221341040021.

It is not a de Polignac number, because 120040143122515 - 2¹ = 120040143122513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120040143122513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22270895844 + ... + 22270901233.

It is an arithmetic number, because the mean of its divisors is an integer number (7616647300338).

Almost surely, 2^{120040143122515} is an apocalyptic number.

120040143122515 is a deficient number, since it is larger than the sum of its proper divisors (62759392085597).

120040143122515 is a wasteful number, since it uses less digits than its factorization.

120040143122515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44541797107 (or 44541797100 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 120040143122515 its reverse (515221341040021), we get a palindrome (635261484162536).

The spelling of 120040143122515 in words is "one hundred twenty trillion, forty billion, one hundred forty-three million, one hundred twenty-two thousand, five hundred fifteen".