121020332231 has 2 divisors, whose sum is σ = 121020332232. Its totient is φ = 121020332230.

The previous prime is 121020332219. The next prime is 121020332281. The reversal of 121020332231 is 132233020121.

It is a weak prime.

It is an emirp because it is prime and its reverse (132233020121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121020332231 - 2¹⁴ = 121020315847 is a prime.

It is a super-2 number, since 2×121020332231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020332281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510166115 + 60510166116.

It is an arithmetic number, because the mean of its divisors is an integer number (60510166116).

Almost surely, 2^121020332231 is an apocalyptic number.

121020332231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020332231 is an equidigital number, since it uses as much as digits as its factorization.

121020332231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121020332231 its reverse (132233020121), we get a palindrome (253253352352).

The spelling of 121020332231 in words is "one hundred twenty-one billion, twenty million, three hundred thirty-two thousand, two hundred thirty-one".