120040642263 has 16 divisors (see below), whose sum is σ = 166736908800. Its totient is φ = 76751901120.

The previous prime is 120040642243. The next prime is 120040642289. The reversal of 120040642263 is 362246040021.

It is not a de Polignac number, because 120040642263 - 2²⁵ = 120007087831 is a prime.

It is a super-2 number, since 2×120040642263² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120040642263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120040642243) 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, 8263423 + ... + 8277936.

It is an arithmetic number, because the mean of its divisors is an integer number (10421056800).

Almost surely, 2^120040642263 is an apocalyptic number.

120040642263 is a deficient number, since it is larger than the sum of its proper divisors (46696266537).

120040642263 is a wasteful number, since it uses less digits than its factorization.

120040642263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16541462.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 120040642263 its reverse (362246040021), we get a palindrome (482286682284).

The spelling of 120040642263 in words is "one hundred twenty billion, forty million, six hundred forty-two thousand, two hundred sixty-three".