1203251245015 has 4 divisors (see below), whose sum is σ = 1443901494024. Its totient is φ = 962600996008.

The previous prime is 1203251245013. The next prime is 1203251245037. The reversal of 1203251245015 is 5105421523021.

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 1203251245015 - 2¹ = 1203251245013 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 (1203251245013) 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, 120325124497 + ... + 120325124506.

It is an arithmetic number, because the mean of its divisors is an integer number (360975373506).

Almost surely, 2^{1203251245015} is an apocalyptic number.

1203251245015 is a deficient number, since it is larger than the sum of its proper divisors (240650249009).

1203251245015 is an equidigital number, since it uses as much as digits as its factorization.

1203251245015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240650249008.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1203251245015 its reverse (5105421523021), we get a palindrome (6308672768036).

The spelling of 1203251245015 in words is "one trillion, two hundred three billion, two hundred fifty-one million, two hundred forty-five thousand, fifteen".