121301202023009 has 2 divisors, whose sum is σ = 121301202023010. Its totient is φ = 121301202023008.

The previous prime is 121301202023003. The next prime is 121301202023063. The reversal of 121301202023009 is 900320202103121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66390360288784 + 54910841734225 = 8148028^2 + 7410185^2 .

It is a cyclic number.

It is not a de Polignac number, because 121301202023009 - 2¹⁶ = 121301201957473 is a prime.

It is a super-2 number, since 2×121301202023009² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121301202023003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650601011504 + 60650601011505.

It is an arithmetic number, because the mean of its divisors is an integer number (60650601011505).

Almost surely, 2^{121301202023009} is an apocalyptic number.

It is an amenable number.

121301202023009 is a deficient number, since it is larger than the sum of its proper divisors (1).

121301202023009 is an equidigital number, since it uses as much as digits as its factorization.

121301202023009 is an evil number, because the sum of its binary digits is even.

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

The spelling of 121301202023009 in words is "one hundred twenty-one trillion, three hundred one billion, two hundred two million, twenty-three thousand, nine".