2121230130231 has 8 divisors (see below), whose sum is σ = 2829273133824. Its totient is φ = 1413670273400.

The previous prime is 2121230130203. The next prime is 2121230130259. The reversal of 2121230130231 is 1320310321212.

It is an interprime number because it is at equal distance from previous prime (2121230130203) and next prime (2121230130259).

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 2121230130231 - 2²¹ = 2121228033079 is a prime.

It is a super-2 number, since 2×2121230130231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2121230130198 and 2121230130207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121230130281) 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, 120776445 + ... + 120794006.

It is an arithmetic number, because the mean of its divisors is an integer number (353659141728).

Almost surely, 2^{2121230130231} is an apocalyptic number.

2121230130231 is a deficient number, since it is larger than the sum of its proper divisors (708043003593).

2121230130231 is a wasteful number, since it uses less digits than its factorization.

2121230130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241573381.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2121230130231 its reverse (1320310321212), we get a palindrome (3441540451443).

The spelling of 2121230130231 in words is "two trillion, one hundred twenty-one billion, two hundred thirty million, one hundred thirty thousand, two hundred thirty-one".