1203313023311 has 24 divisors (see below), whose sum is σ = 1439170282080. Its totient is φ = 1002441811392.

The previous prime is 1203313023307. The next prime is 1203313023329. The reversal of 1203313023311 is 1133203133021.

It is not a de Polignac number, because 1203313023311 - 2² = 1203313023307 is a prime.

It is a super-3 number, since 3×1203313023311³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203313029311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1305041 + ... + 2027253.

It is an arithmetic number, because the mean of its divisors is an integer number (59965428420).

Almost surely, 2^{1203313023311} is an apocalyptic number.

1203313023311 is a deficient number, since it is larger than the sum of its proper divisors (235857258769).

1203313023311 is an equidigital number, since it uses as much as digits as its factorization.

1203313023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723183 (or 723176 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1203313023311 its reverse (1133203133021), we get a palindrome (2336516156332).

The spelling of 1203313023311 in words is "one trillion, two hundred three billion, three hundred thirteen million, twenty-three thousand, three hundred eleven".