1213111301033 has 8 divisors (see below), whose sum is σ = 1244853130920. Its totient is φ = 1181472030720.

The previous prime is 1213111301027. The next prime is 1213111301063. The reversal of 1213111301033 is 3301031113121.

It can be written as a sum of positive squares in 4 ways, for example, as 6569426704 + 1206541874329 = 81052^2 + 1098427^2 .

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 1213111301033 - 2¹² = 1213111296937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213111300996 and 1213111301014.

It is not an unprimeable number, because it can be changed into a prime (1213111301023) 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, 25615928 + ... + 25663241.

It is an arithmetic number, because the mean of its divisors is an integer number (155606641365).

Almost surely, 2^{1213111301033} is an apocalyptic number.

It is an amenable number.

1213111301033 is a deficient number, since it is larger than the sum of its proper divisors (31741829887).

1213111301033 is an equidigital number, since it uses as much as digits as its factorization.

1213111301033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51279787.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1213111301033 its reverse (3301031113121), we get a palindrome (4514142414154).

The spelling of 1213111301033 in words is "one trillion, two hundred thirteen billion, one hundred eleven million, three hundred one thousand, thirty-three".