121103021321231 has 8 divisors (see below), whose sum is σ = 133801803608544. Its totient is φ = 109023691828480.

The previous prime is 121103021321209. The next prime is 121103021321383. The reversal of 121103021321231 is 132123120301121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121103021321231 - 2¹⁸ = 121103021059087 is a prime.

It is a super-2 number, since 2×121103021321231² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121103021321197 and 121103021321206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103021321131) 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 7 ways as a sum of consecutive naturals, for example, 154863198230 + ... + 154863199011.

It is an arithmetic number, because the mean of its divisors is an integer number (16725225451068).

Almost surely, 2^{121103021321231} is an apocalyptic number.

121103021321231 is a deficient number, since it is larger than the sum of its proper divisors (12698782287313).

121103021321231 is a wasteful number, since it uses less digits than its factorization.

121103021321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309726397281.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 121103021321231 its reverse (132123120301121), we get a palindrome (253226141622352).

The spelling of 121103021321231 in words is "one hundred twenty-one trillion, one hundred three billion, twenty-one million, three hundred twenty-one thousand, two hundred thirty-one".