121012320029 has 2 divisors, whose sum is σ = 121012320030. Its totient is φ = 121012320028.

The previous prime is 121012319977. The next prime is 121012320049. The reversal of 121012320029 is 920023210121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67406179129 + 53606140900 = 259627^2 + 231530^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012320029 - 2³² = 116717352733 is a prime.

It is a super-2 number, since 2×121012320029² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121012319986 and 121012320013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121012320049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506160014 + 60506160015.

It is an arithmetic number, because the mean of its divisors is an integer number (60506160015).

Almost surely, 2^121012320029 is an apocalyptic number.

It is an amenable number.

121012320029 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012320029 is an equidigital number, since it uses as much as digits as its factorization.

121012320029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 121012320029 in words is "one hundred twenty-one billion, twelve million, three hundred twenty thousand, twenty-nine".