154203220252423 has 4 divisors (see below), whose sum is σ = 154817575711848. Its totient is φ = 153588864793000.

The previous prime is 154203220252399. The next prime is 154203220252457. The reversal of 154203220252423 is 324252022302451.

154203220252423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 154203220252423 - 2¹³ = 154203220244231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154203220222423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307177729336 + ... + 307177729837.

It is an arithmetic number, because the mean of its divisors is an integer number (38704393927962).

Almost surely, 2^{154203220252423} is an apocalyptic number.

154203220252423 is a deficient number, since it is larger than the sum of its proper divisors (614355459425).

154203220252423 is an equidigital number, since it uses as much as digits as its factorization.

154203220252423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614355459424.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 154203220252423 its reverse (324252022302451), we get a palindrome (478455242554874).

The spelling of 154203220252423 in words is "one hundred fifty-four trillion, two hundred three billion, two hundred twenty million, two hundred fifty-two thousand, four hundred twenty-three".