1203030225545 has 4 divisors (see below), whose sum is σ = 1443636270660. Its totient is φ = 962424180432.

The previous prime is 1203030225541. The next prime is 1203030225581. The reversal of 1203030225545 is 5455220303021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 244252419961 + 958777805584 = 494219^2 + 979172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203030225545 - 2² = 1203030225541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1203030225541) 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, 120303022550 + ... + 120303022559.

It is an arithmetic number, because the mean of its divisors is an integer number (360909067665).

Almost surely, 2^{1203030225545} is an apocalyptic number.

It is an amenable number.

1203030225545 is a deficient number, since it is larger than the sum of its proper divisors (240606045115).

1203030225545 is an equidigital number, since it uses as much as digits as its factorization.

1203030225545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240606045114.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 1203030225545 its reverse (5455220303021), we get a palindrome (6658250528566).

The spelling of 1203030225545 in words is "one trillion, two hundred three billion, thirty million, two hundred twenty-five thousand, five hundred forty-five".