121202203231 has 2 divisors, whose sum is σ = 121202203232. Its totient is φ = 121202203230.

The previous prime is 121202203223. The next prime is 121202203249. The reversal of 121202203231 is 132302202121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121202203231 - 2³ = 121202203223 is a prime.

It is a super-2 number, since 2×121202203231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121202203199 and 121202203208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121202203201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601101615 + 60601101616.

It is an arithmetic number, because the mean of its divisors is an integer number (60601101616).

Almost surely, 2^121202203231 is an apocalyptic number.

121202203231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202203231 is an equidigital number, since it uses as much as digits as its factorization.

121202203231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121202203231 its reverse (132302202121), we get a palindrome (253504405352).

The spelling of 121202203231 in words is "one hundred twenty-one billion, two hundred two million, two hundred three thousand, two hundred thirty-one".