121031001021321 has 12 divisors (see below), whose sum is σ = 185106236856372. Its totient is φ = 75941020248576.

The previous prime is 121031001021319. The next prime is 121031001021323. The reversal of 121031001021321 is 123120100130121.

121031001021321 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 310 + 0 + 10 + 21 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (121031001021319) and next prime (121031001021323).

It can be written as a sum of positive squares in 2 ways, for example, as 95126860890000 + 25904140131321 = 9753300^2 + 5089611^2 .

It is not a de Polignac number, because 121031001021321 - 2¹ = 121031001021319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121031001021294 and 121031001021303.

It is not an unprimeable number, because it can be changed into a prime (121031001021323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395526146976 + ... + 395526147281.

It is an arithmetic number, because the mean of its divisors is an integer number (15425519738031).

Almost surely, 2^{121031001021321} is an apocalyptic number.

It is an amenable number.

121031001021321 is a deficient number, since it is larger than the sum of its proper divisors (64075235835051).

121031001021321 is a wasteful number, since it uses less digits than its factorization.

121031001021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791052294280 (or 791052294277 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121031001021321 its reverse (123120100130121), we get a palindrome (244151101151442).

The spelling of 121031001021321 in words is "one hundred twenty-one trillion, thirty-one billion, one million, twenty-one thousand, three hundred twenty-one".