1203215011 has 4 divisors (see below), whose sum is σ = 1221173512. Its totient is φ = 1185256512.

The previous prime is 1203215003. The next prime is 1203215113. The reversal of 1203215011 is 1105123021.

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 1203215011 - 2³ = 1203215003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203215311) 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, 8979150 + ... + 8979283.

It is an arithmetic number, because the mean of its divisors is an integer number (305293378).

Almost surely, 2^1203215011 is an apocalyptic number.

1203215011 is a deficient number, since it is larger than the sum of its proper divisors (17958501).

1203215011 is an equidigital number, since it uses as much as digits as its factorization.

1203215011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17958500.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1203215011 is about 34687.3897980231. The cubic root of 1203215011 is about 1063.6067393005.

Adding to 1203215011 its reverse (1105123021), we get a palindrome (2308338032).

The spelling of 1203215011 in words is "one billion, two hundred three million, two hundred fifteen thousand, eleven".