13121023332101 has 4 divisors (see below), whose sum is σ = 13125609501804. Its totient is φ = 13116437162400.

The previous prime is 13121023332059. The next prime is 13121023332119. The reversal of 13121023332101 is 10123332012131.

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 8415481893025 + 4705541439076 = 2900945^2 + 2169226^2 .

It is a cyclic number.

It is not a de Polignac number, because 13121023332101 - 2¹⁰ = 13121023331077 is a prime.

It is a super-2 number, since 2×13121023332101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121023332121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293080560 + ... + 2293086281.

It is an arithmetic number, because the mean of its divisors is an integer number (3281402375451).

Almost surely, 2^{13121023332101} is an apocalyptic number.

It is an amenable number.

13121023332101 is a deficient number, since it is larger than the sum of its proper divisors (4586169703).

13121023332101 is an equidigital number, since it uses as much as digits as its factorization.

13121023332101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586169702.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13121023332101 its reverse (10123332012131), we get a palindrome (23244355344232).

The spelling of 13121023332101 in words is "thirteen trillion, one hundred twenty-one billion, twenty-three million, three hundred thirty-two thousand, one hundred one".