12121302302 has 4 divisors (see below), whose sum is σ = 18181953456. Its totient is φ = 6060651150.

The previous prime is 12121302269. The next prime is 12121302373. The reversal of 12121302302 is 20320312121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20320312121 = 7103 ⋅2860807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030325574 + ... + 3030325577.

It is an arithmetic number, because the mean of its divisors is an integer number (4545488364).

Almost surely, 2^12121302302 is an apocalyptic number.

12121302302 is a deficient number, since it is larger than the sum of its proper divisors (6060651154).

12121302302 is an equidigital number, since it uses as much as digits as its factorization.

12121302302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060651153.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12121302302 its reverse (20320312121), we get a palindrome (32441614423).

The spelling of 12121302302 in words is "twelve billion, one hundred twenty-one million, three hundred two thousand, three hundred two".