121323212029 has 2 divisors, whose sum is σ = 121323212030. Its totient is φ = 121323212028.

The previous prime is 121323211991. The next prime is 121323212041. The reversal of 121323212029 is 920212323121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86729072004 + 34594140025 = 294498^2 + 185995^2 .

It is a cyclic number.

It is not a de Polignac number, because 121323212029 - 2¹⁵ = 121323179261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121323211988 and 121323212006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121323212629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60661606014 + 60661606015.

It is an arithmetic number, because the mean of its divisors is an integer number (60661606015).

Almost surely, 2^121323212029 is an apocalyptic number.

It is an amenable number.

121323212029 is a deficient number, since it is larger than the sum of its proper divisors (1).

121323212029 is an equidigital number, since it uses as much as digits as its factorization.

121323212029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 121323212029 in words is "one hundred twenty-one billion, three hundred twenty-three million, two hundred twelve thousand, twenty-nine".