1203020045 has 8 divisors (see below), whose sum is σ = 1528543224. Its totient is φ = 905803264.

The previous prime is 1203020003. The next prime is 1203020047. The reversal of 1203020045 is 5400203021.

It can be written as a sum of positive squares in 4 ways, for example, as 560600329 + 642419716 = 23677^2 + 25346^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1203020045 - 2¹⁶ = 1202954509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203020047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7076504 + ... + 7076673.

It is an arithmetic number, because the mean of its divisors is an integer number (191067903).

Almost surely, 2^1203020045 is an apocalyptic number.

It is an amenable number.

1203020045 is a deficient number, since it is larger than the sum of its proper divisors (325523179).

1203020045 is a wasteful number, since it uses less digits than its factorization.

1203020045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14153199.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1203020045 is about 34684.5793545201. The cubic root of 1203020045 is about 1063.5492881242.

Adding to 1203020045 its reverse (5400203021), we get a palindrome (6603223066).

The spelling of 1203020045 in words is "one billion, two hundred three million, twenty thousand, forty-five".