1201211210303 has 32 divisors (see below), whose sum is σ = 1430207041536. Its totient is φ = 997551042048.

The previous prime is 1201211210299. The next prime is 1201211210411. The reversal of 1201211210303 is 3030121121021.

It is a cyclic number.

It is not a de Polignac number, because 1201211210303 - 2² = 1201211210299 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201211210203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7663826 + ... + 7818992.

It is an arithmetic number, because the mean of its divisors is an integer number (44693970048).

Almost surely, 2^{1201211210303} is an apocalyptic number.

1201211210303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201211210303 is a deficient number, since it is larger than the sum of its proper divisors (228995831233).

1201211210303 is a wasteful number, since it uses less digits than its factorization.

1201211210303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156743.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1201211210303 its reverse (3030121121021), we get a palindrome (4231332331324).

The spelling of 1201211210303 in words is "one trillion, two hundred one billion, two hundred eleven million, two hundred ten thousand, three hundred three".