121051133231 has 8 divisors (see below), whose sum is σ = 138836482464. Its totient is φ = 103388866560.

The previous prime is 121051133201. The next prime is 121051133233. The reversal of 121051133231 is 132331150121.

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

It is not a de Polignac number, because 121051133231 - 2⁶ = 121051133167 is a prime.

It is a super-2 number, since 2×121051133231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121051133197 and 121051133206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121051133233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30768530 + ... + 30772463.

It is an arithmetic number, because the mean of its divisors is an integer number (17354560308).

Almost surely, 2^121051133231 is an apocalyptic number.

121051133231 is a deficient number, since it is larger than the sum of its proper divisors (17785349233).

121051133231 is an equidigital number, since it uses as much as digits as its factorization.

121051133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61541281.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 121051133231 its reverse (132331150121), we get a palindrome (253382283352).

The spelling of 121051133231 in words is "one hundred twenty-one billion, fifty-one million, one hundred thirty-three thousand, two hundred thirty-one".