121131230131 has 8 divisors (see below), whose sum is σ = 124015660704. Its totient is φ = 118275789120.

The previous prime is 121131230117. The next prime is 121131230141. The reversal of 121131230131 is 131032131121.

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 121131230131 - 2⁹ = 121131229619 is a prime.

It is a super-2 number, since 2×121131230131² (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 = 121131230099 and 121131230108.

It is not an unprimeable number, because it can be changed into a prime (121131230111) 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, 7238935 + ... + 7255648.

It is an arithmetic number, because the mean of its divisors is an integer number (15501957588).

Almost surely, 2^121131230131 is an apocalyptic number.

121131230131 is a deficient number, since it is larger than the sum of its proper divisors (2884430573).

121131230131 is a wasteful number, since it uses less digits than its factorization.

121131230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14494781.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121131230131 its reverse (131032131121), we get a palindrome (252163361252).

The spelling of 121131230131 in words is "one hundred twenty-one billion, one hundred thirty-one million, two hundred thirty thousand, one hundred thirty-one".