121300013210231 has 4 divisors (see below), whose sum is σ = 121747614735264. Its totient is φ = 120852411685200.

The previous prime is 121300013210179. The next prime is 121300013210269. The reversal of 121300013210231 is 132012310003121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121300013210231 is a prime.

It is a super-2 number, since 2×121300013210231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300013200231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223800762110 + ... + 223800762651.

It is an arithmetic number, because the mean of its divisors is an integer number (30436903683816).

Almost surely, 2^{121300013210231} is an apocalyptic number.

121300013210231 is a deficient number, since it is larger than the sum of its proper divisors (447601525033).

121300013210231 is an equidigital number, since it uses as much as digits as its factorization.

121300013210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447601525032.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121300013210231 its reverse (132012310003121), we get a palindrome (253312323213352).

The spelling of 121300013210231 in words is "one hundred twenty-one trillion, three hundred billion, thirteen million, two hundred ten thousand, two hundred thirty-one".