121321301211031 has 2 divisors, whose sum is σ = 121321301211032. Its totient is φ = 121321301211030.

The previous prime is 121321301210987. The next prime is 121321301211083. The reversal of 121321301211031 is 130112103123121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121321301211031 - 2¹³ = 121321301202839 is a prime.

It is a super-2 number, since 2×121321301211031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121321301210993 and 121321301211011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121321301217031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660650605515 + 60660650605516.

It is an arithmetic number, because the mean of its divisors is an integer number (60660650605516).

Almost surely, 2^{121321301211031} is an apocalyptic number.

121321301211031 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321301211031 is an equidigital number, since it uses as much as digits as its factorization.

121321301211031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121321301211031 its reverse (130112103123121), we get a palindrome (251433404334152).

The spelling of 121321301211031 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, three hundred one million, two hundred eleven thousand, thirty-one".