121231211363 has 2 divisors, whose sum is σ = 121231211364. Its totient is φ = 121231211362.

The previous prime is 121231211357. The next prime is 121231211401. The reversal of 121231211363 is 363112132121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121231211363 - 2⁸ = 121231211107 is a prime.

It is not a weakly prime, because it can be changed into another prime (121231211063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615605681 + 60615605682.

It is an arithmetic number, because the mean of its divisors is an integer number (60615605682).

Almost surely, 2^121231211363 is an apocalyptic number.

121231211363 is a deficient number, since it is larger than the sum of its proper divisors (1).

121231211363 is an equidigital number, since it uses as much as digits as its factorization.

121231211363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

Adding to 121231211363 its reverse (363112132121), we get a palindrome (484343343484).

The spelling of 121231211363 in words is "one hundred twenty-one billion, two hundred thirty-one million, two hundred eleven thousand, three hundred sixty-three".