121331123202073 has 2 divisors, whose sum is σ = 121331123202074. Its totient is φ = 121331123202072.

The previous prime is 121331123202067. The next prime is 121331123202181. The reversal of 121331123202073 is 370202321133121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63920072970009 + 57411050232064 = 7995003^2 + 7577008^2 .

It is a cyclic number.

It is not a de Polignac number, because 121331123202073 - 2¹³ = 121331123193881 is a prime.

It is not a weakly prime, because it can be changed into another prime (121331123212073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60665561601036 + 60665561601037.

It is an arithmetic number, because the mean of its divisors is an integer number (60665561601037).

Almost surely, 2^{121331123202073} is an apocalyptic number.

It is an amenable number.

121331123202073 is a deficient number, since it is larger than the sum of its proper divisors (1).

121331123202073 is an equidigital number, since it uses as much as digits as its factorization.

121331123202073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 121331123202073 its reverse (370202321133121), we get a palindrome (491533444335194).

The spelling of 121331123202073 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, one hundred twenty-three million, two hundred two thousand, seventy-three".