121231302101 has 16 divisors (see below), whose sum is σ = 152677709184. Its totient is φ = 93688588224.

The previous prime is 121231302089. The next prime is 121231302109. The reversal of 121231302101 is 101203132121.

It is not a de Polignac number, because 121231302101 - 2¹⁰ = 121231301077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121231302101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121231302109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15486926 + ... + 15494751.

It is an arithmetic number, because the mean of its divisors is an integer number (9542356824).

Almost surely, 2^121231302101 is an apocalyptic number.

It is an amenable number.

121231302101 is a deficient number, since it is larger than the sum of its proper divisors (31446407083).

121231302101 is a wasteful number, since it uses less digits than its factorization.

121231302101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30981740.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121231302101 its reverse (101203132121), we get a palindrome (222434434222).

The spelling of 121231302101 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred two thousand, one hundred one".