145011503203 has 4 divisors (see below), whose sum is σ = 165727432240. Its totient is φ = 124295574168.

The previous prime is 145011503183. The next prime is 145011503257. The reversal of 145011503203 is 302305110541.

It is a happy number.

145011503203 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 145011503203 - 2¹³ = 145011495011 is a prime.

It is a super-2 number, since 2×145011503203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145011593203) 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, 10357964508 + ... + 10357964521.

It is an arithmetic number, because the mean of its divisors is an integer number (41431858060).

Almost surely, 2^145011503203 is an apocalyptic number.

145011503203 is a deficient number, since it is larger than the sum of its proper divisors (20715929037).

145011503203 is an equidigital number, since it uses as much as digits as its factorization.

145011503203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20715929036.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 145011503203 its reverse (302305110541), we get a palindrome (447316613744).

The spelling of 145011503203 in words is "one hundred forty-five billion, eleven million, five hundred three thousand, two hundred three".