10131230121 has 8 divisors (see below), whose sum is σ = 14302913184. Its totient is φ = 6356850240.

The previous prime is 10131230119. The next prime is 10131230149. The reversal of 10131230121 is 12103213101.

It is a happy number.

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

It is not a de Polignac number, because 10131230121 - 2¹ = 10131230119 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10131230121.

It is not an unprimeable number, because it can be changed into a prime (10131230821) 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, 99325735 + ... + 99325836.

It is an arithmetic number, because the mean of its divisors is an integer number (1787864148).

Almost surely, 2^10131230121 is an apocalyptic number.

It is an amenable number.

10131230121 is a deficient number, since it is larger than the sum of its proper divisors (4171683063).

10131230121 is a wasteful number, since it uses less digits than its factorization.

10131230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198651591.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10131230121 its reverse (12103213101), we get a palindrome (22234443222).

The spelling of 10131230121 in words is "ten billion, one hundred thirty-one million, two hundred thirty thousand, one hundred twenty-one".