121302123401 has 4 divisors (see below), whose sum is σ = 121305764100. Its totient is φ = 121298482704.

The previous prime is 121302123329. The next prime is 121302123427. The reversal of 121302123401 is 104321203121.

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 75418341376 + 45883782025 = 274624^2 + 214205^2 .

It is a cyclic number.

It is not a de Polignac number, because 121302123401 - 2¹⁸ = 121301861257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121302123001) 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, 1769906 + ... + 1837163.

It is an arithmetic number, because the mean of its divisors is an integer number (30326441025).

Almost surely, 2^121302123401 is an apocalyptic number.

It is an amenable number.

121302123401 is a deficient number, since it is larger than the sum of its proper divisors (3640699).

121302123401 is an equidigital number, since it uses as much as digits as its factorization.

121302123401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640698.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121302123401 its reverse (104321203121), we get a palindrome (225623326522).

The spelling of 121302123401 in words is "one hundred twenty-one billion, three hundred two million, one hundred twenty-three thousand, four hundred one".