11287464233 has 2 divisors, whose sum is σ = 11287464234. Its totient is φ = 11287464232.

The previous prime is 11287464203. The next prime is 11287464239. The reversal of 11287464233 is 33246478211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9200070889 + 2087393344 = 95917^2 + 45688^2 .

It is a cyclic number.

It is not a de Polignac number, because 11287464233 - 2⁶ = 11287464169 is a prime.

It is a super-2 number, since 2×11287464233² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11287464239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5643732116 + 5643732117.

It is an arithmetic number, because the mean of its divisors is an integer number (5643732117).

Almost surely, 2^11287464233 is an apocalyptic number.

It is an amenable number.

11287464233 is a deficient number, since it is larger than the sum of its proper divisors (1).

11287464233 is an equidigital number, since it uses as much as digits as its factorization.

11287464233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The spelling of 11287464233 in words is "eleven billion, two hundred eighty-seven million, four hundred sixty-four thousand, two hundred thirty-three".