13122233402 has 4 divisors (see below), whose sum is σ = 19683350106. Its totient is φ = 6561116700.

The previous prime is 13122233389. The next prime is 13122233407. The reversal of 13122233402 is 20433222131.

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

It can be written as a sum of positive squares in only one way, i.e., 12697007761 + 425225641 = 112681^2 + 20621^2 .

It is not an unprimeable number, because it can be changed into a prime (13122233407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280558349 + ... + 3280558352.

Almost surely, 2^13122233402 is an apocalyptic number.

13122233402 is a deficient number, since it is larger than the sum of its proper divisors (6561116704).

13122233402 is an equidigital number, since it uses as much as digits as its factorization.

13122233402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561116703.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13122233402 its reverse (20433222131), we get a palindrome (33555455533).

The spelling of 13122233402 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty-three thousand, four hundred two".