1233121220313 has 16 divisors (see below), whose sum is σ = 1688633270016. Its totient is φ = 799845909120.

The previous prime is 1233121220263. The next prime is 1233121220327. The reversal of 1233121220313 is 3130221213321.

It is not a de Polignac number, because 1233121220313 - 2¹³ = 1233121212121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1233121220113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7645008 + ... + 7804638.

It is an arithmetic number, because the mean of its divisors is an integer number (105539579376).

Almost surely, 2^{1233121220313} is an apocalyptic number.

It is an amenable number.

1233121220313 is a deficient number, since it is larger than the sum of its proper divisors (455512049703).

1233121220313 is a wasteful number, since it uses less digits than its factorization.

1233121220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229264.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1233121220313 its reverse (3130221213321), we get a palindrome (4363342433634).

The spelling of 1233121220313 in words is "one trillion, two hundred thirty-three billion, one hundred twenty-one million, two hundred twenty thousand, three hundred thirteen".