121020201020231 has 2 divisors, whose sum is σ = 121020201020232. Its totient is φ = 121020201020230.

The previous prime is 121020201020179. The next prime is 121020201020297. The reversal of 121020201020231 is 132020102020121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121020201020231 is a prime.

It is a super-2 number, since 2×121020201020231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020201028231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510100510115 + 60510100510116.

It is an arithmetic number, because the mean of its divisors is an integer number (60510100510116).

Almost surely, 2^{121020201020231} is an apocalyptic number.

121020201020231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020201020231 is an equidigital number, since it uses as much as digits as its factorization.

121020201020231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121020201020231 its reverse (132020102020121), we get a palindrome (253040303040352).

The spelling of 121020201020231 in words is "one hundred twenty-one trillion, twenty billion, two hundred one million, twenty thousand, two hundred thirty-one".