121303012001231 has 2 divisors, whose sum is σ = 121303012001232. Its totient is φ = 121303012001230.

The previous prime is 121303012001183. The next prime is 121303012001273. The reversal of 121303012001231 is 132100210303121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121303012001231 - 2²² = 121303007806927 is a prime.

It is a super-2 number, since 2×121303012001231² (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 (121303012001131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651506000615 + 60651506000616.

It is an arithmetic number, because the mean of its divisors is an integer number (60651506000616).

Almost surely, 2^{121303012001231} is an apocalyptic number.

121303012001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121303012001231 is an equidigital number, since it uses as much as digits as its factorization.

121303012001231 is an evil number, because the sum of its binary digits is even.

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

Adding to 121303012001231 its reverse (132100210303121), we get a palindrome (253403222304352).

The spelling of 121303012001231 in words is "one hundred twenty-one trillion, three hundred three billion, twelve million, one thousand, two hundred thirty-one".