154343132120203 has 4 divisors (see below), whose sum is σ = 166215680744848. Its totient is φ = 142470583495560.

The previous prime is 154343132120201. The next prime is 154343132120279. The reversal of 154343132120203 is 302021231343451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154343132120203 - 2¹ = 154343132120201 is a prime.

It is a super-2 number, since 2×154343132120203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154343132120201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5936274312303 + ... + 5936274312328.

It is an arithmetic number, because the mean of its divisors is an integer number (41553920186212).

Almost surely, 2^{154343132120203} is an apocalyptic number.

154343132120203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

154343132120203 is a deficient number, since it is larger than the sum of its proper divisors (11872548624645).

154343132120203 is a wasteful number, since it uses less digits than its factorization.

154343132120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11872548624644.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 154343132120203 its reverse (302021231343451), we get a palindrome (456364363463654).

The spelling of 154343132120203 in words is "one hundred fifty-four trillion, three hundred forty-three billion, one hundred thirty-two million, one hundred twenty thousand, two hundred three".