154311231242 has 16 divisors (see below), whose sum is σ = 270161913600. Its totient is φ = 64726291248.

The previous prime is 154311231197. The next prime is 154311231271. The reversal of 154311231242 is 242132113451.

It is a happy number.

154311231242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 117257117 + ... + 117258432.

It is an arithmetic number, because the mean of its divisors is an integer number (16885119600).

Almost surely, 2^154311231242 is an apocalyptic number.

154311231242 is a deficient number, since it is larger than the sum of its proper divisors (115850682358).

154311231242 is a wasteful number, since it uses less digits than its factorization.

154311231242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234515605.

The product of its digits is 5760, while the sum is 29.

Adding to 154311231242 its reverse (242132113451), we get a palindrome (396443344693).

The spelling of 154311231242 in words is "one hundred fifty-four billion, three hundred eleven million, two hundred thirty-one thousand, two hundred forty-two".