121400353229 has 2 divisors, whose sum is σ = 121400353230. Its totient is φ = 121400353228.

The previous prime is 121400353213. The next prime is 121400353231. The reversal of 121400353229 is 922353004121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98803348900 + 22597004329 = 314330^2 + 150323^2 .

It is a cyclic number.

It is not a de Polignac number, because 121400353229 - 2⁴ = 121400353213 is a prime.

Together with 121400353231, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121400353195 and 121400353204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121400353429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60700176614 + 60700176615.

It is an arithmetic number, because the mean of its divisors is an integer number (60700176615).

Almost surely, 2^121400353229 is an apocalyptic number.

It is an amenable number.

121400353229 is a deficient number, since it is larger than the sum of its proper divisors (1).

121400353229 is an equidigital number, since it uses as much as digits as its factorization.

121400353229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 121400353229 in words is "one hundred twenty-one billion, four hundred million, three hundred fifty-three thousand, two hundred twenty-nine".