11621351233 has 2 divisors, whose sum is σ = 11621351234. Its totient is φ = 11621351232.

The previous prime is 11621351227. The next prime is 11621351239. The reversal of 11621351233 is 33215312611.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (11621351227) and next prime (11621351239).

It can be written as a sum of positive squares in only one way, i.e., 6501519424 + 5119831809 = 80632^2 + 71553^2 .

It is a cyclic number.

It is not a de Polignac number, because 11621351233 - 2⁹ = 11621350721 is a prime.

It is not a weakly prime, because it can be changed into another prime (11621351239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810675616 + 5810675617.

It is an arithmetic number, because the mean of its divisors is an integer number (5810675617).

Almost surely, 2^11621351233 is an apocalyptic number.

It is an amenable number.

11621351233 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621351233 is an equidigital number, since it uses as much as digits as its factorization.

11621351233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

Adding to 11621351233 its reverse (33215312611), we get a palindrome (44836663844).

The spelling of 11621351233 in words is "eleven billion, six hundred twenty-one million, three hundred fifty-one thousand, two hundred thirty-three".