1201243015 has 8 divisors (see below), whose sum is σ = 1647419040. Its totient is φ = 823709472.

The previous prime is 1201243013. The next prime is 1201243027. The reversal of 1201243015 is 5103421021.

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 1201243015 - 2¹ = 1201243013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201242983 and 1201243001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201243013) 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, 17160580 + ... + 17160649.

It is an arithmetic number, because the mean of its divisors is an integer number (205927380).

Almost surely, 2^1201243015 is an apocalyptic number.

1201243015 is a deficient number, since it is larger than the sum of its proper divisors (446176025).

1201243015 is an equidigital number, since it uses as much as digits as its factorization.

1201243015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34321241.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1201243015 is about 34658.9528837788. The cubic root of 1201243015 is about 1063.0253593828.

Adding to 1201243015 its reverse (5103421021), we get a palindrome (6304664036).

The spelling of 1201243015 in words is "one billion, two hundred one million, two hundred forty-three thousand, fifteen".