120454145243 has 16 divisors (see below), whose sum is σ = 124377684480. Its totient is φ = 116567100000.

The previous prime is 120454145239. The next prime is 120454145281. The reversal of 120454145243 is 342541454021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120454145243 - 2² = 120454145239 is a prime.

It is a super-2 number, since 2×120454145243² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120454145233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6854318 + ... + 6871868.

It is an arithmetic number, because the mean of its divisors is an integer number (7773605280).

Almost surely, 2^120454145243 is an apocalyptic number.

120454145243 is a deficient number, since it is larger than the sum of its proper divisors (3923539237).

120454145243 is a wasteful number, since it uses less digits than its factorization.

120454145243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18578.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 120454145243 its reverse (342541454021), we get a palindrome (462995599264).

The spelling of 120454145243 in words is "one hundred twenty billion, four hundred fifty-four million, one hundred forty-five thousand, two hundred forty-three".