120002431553 has 12 divisors (see below), whose sum is σ = 121503028608. Its totient is φ = 118509191640.

The previous prime is 120002431547. The next prime is 120002431561. The reversal of 120002431553 is 355134200021.

It is a happy number.

It is not a de Polignac number, because 120002431553 - 2¹⁶ = 120002366017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120002431453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14790968 + ... + 14799078.

It is an arithmetic number, because the mean of its divisors is an integer number (10125252384).

Almost surely, 2^120002431553 is an apocalyptic number.

It is an amenable number.

120002431553 is a deficient number, since it is larger than the sum of its proper divisors (1500597055).

120002431553 is an frugal number, since it uses more digits than its factorization.

120002431553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972 (or 8593 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 120002431553 its reverse (355134200021), we get a palindrome (475136631574).

The spelling of 120002431553 in words is "one hundred twenty billion, two million, four hundred thirty-one thousand, five hundred fifty-three".