1233022013 has 4 divisors (see below), whose sum is σ = 1233374940. Its totient is φ = 1232669088.

The previous prime is 1233022009. The next prime is 1233022031. The reversal of 1233022013 is 3102203321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 359405764 + 873616249 = 18958^2 + 29557^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233022013 - 2² = 1233022009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233021982 and 1233022000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233022313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171170 + ... + 178227.

It is an arithmetic number, because the mean of its divisors is an integer number (308343735).

Almost surely, 2^1233022013 is an apocalyptic number.

It is an amenable number.

1233022013 is a deficient number, since it is larger than the sum of its proper divisors (352927).

1233022013 is an equidigital number, since it uses as much as digits as its factorization.

1233022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352926.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1233022013 is about 35114.4131803452. The cubic root of 1233022013 is about 1072.3180342698.

Adding to 1233022013 its reverse (3102203321), we get a palindrome (4335225334).

It can be divided in two parts, 12330 and 22013, that added together give a palindrome (34343).

The spelling of 1233022013 in words is "one billion, two hundred thirty-three million, twenty-two thousand, thirteen".