123122213002 has 4 divisors (see below), whose sum is σ = 184683319506. Its totient is φ = 61561106500.

The previous prime is 123122212919. The next prime is 123122213003. The reversal of 123122213002 is 200312221321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200312221321 = 3251 ⋅61615571.

It can be written as a sum of positive squares in only one way, i.e., 120187715761 + 2934497241 = 346681^2 + 54171^2 .

It is not an unprimeable number, because it can be changed into a prime (123122213003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30780553249 + ... + 30780553252.

Almost surely, 2^123122213002 is an apocalyptic number.

123122213002 is a deficient number, since it is larger than the sum of its proper divisors (61561106504).

123122213002 is an equidigital number, since it uses as much as digits as its factorization.

123122213002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61561106503.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123122213002 its reverse (200312221321), we get a palindrome (323434434323).

The spelling of 123122213002 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred thirteen thousand, two".