121203030321311 has 2 divisors, whose sum is σ = 121203030321312. Its totient is φ = 121203030321310.

The previous prime is 121203030321299. The next prime is 121203030321407. The reversal of 121203030321311 is 113123030302121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121203030321311 - 2¹⁴ = 121203030304927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121203030321911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601515160655 + 60601515160656.

It is an arithmetic number, because the mean of its divisors is an integer number (60601515160656).

Almost surely, 2^{121203030321311} is an apocalyptic number.

121203030321311 is a deficient number, since it is larger than the sum of its proper divisors (1).

121203030321311 is an equidigital number, since it uses as much as digits as its factorization.

121203030321311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 121203030321311 its reverse (113123030302121), we get a palindrome (234326060623432).

The spelling of 121203030321311 in words is "one hundred twenty-one trillion, two hundred three billion, thirty million, three hundred twenty-one thousand, three hundred eleven".