145201202512231 has 4 divisors (see below), whose sum is σ = 145766187736272. Its totient is φ = 144636217288192.

The previous prime is 145201202512199. The next prime is 145201202512349. The reversal of 145201202512231 is 132215202102541.

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 145201202512231 - 2⁵ = 145201202512199 is a prime.

It is a super-2 number, since 2×145201202512231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145201202512193 and 145201202512202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145201202512831) 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 3 ways as a sum of consecutive naturals, for example, 282492611635 + ... + 282492612148.

It is an arithmetic number, because the mean of its divisors is an integer number (36441546934068).

Almost surely, 2^{145201202512231} is an apocalyptic number.

145201202512231 is a deficient number, since it is larger than the sum of its proper divisors (564985224041).

145201202512231 is an equidigital number, since it uses as much as digits as its factorization.

145201202512231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564985224040.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 145201202512231 its reverse (132215202102541), we get a palindrome (277416404614772).

The spelling of 145201202512231 in words is "one hundred forty-five trillion, two hundred one billion, two hundred two million, five hundred twelve thousand, two hundred thirty-one".