121203432131 has 8 divisors (see below), whose sum is σ = 121986326880. Its totient is φ = 120420675648.

The previous prime is 121203432121. The next prime is 121203432149. The reversal of 121203432131 is 131234302121.

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 121203432131 - 2²⁶ = 121136323267 is a prime.

It is a super-2 number, since 2×121203432131² (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 = 121203432097 and 121203432106.

It is not an unprimeable number, because it can be changed into a prime (121203432121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179490 + ... + 2234408.

It is an arithmetic number, because the mean of its divisors is an integer number (15248290860).

Almost surely, 2^121203432131 is an apocalyptic number.

121203432131 is a deficient number, since it is larger than the sum of its proper divisors (782894749).

121203432131 is a wasteful number, since it uses less digits than its factorization.

121203432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69133.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121203432131 its reverse (131234302121), we get a palindrome (252437734252).

The spelling of 121203432131 in words is "one hundred twenty-one billion, two hundred three million, four hundred thirty-two thousand, one hundred thirty-one".