121353231452345 has 8 divisors (see below), whose sum is σ = 145624545960264. Its totient is φ = 97082139683584.

The previous prime is 121353231452291. The next prime is 121353231452363. The reversal of 121353231452345 is 543254132353121.

It can be written as a sum of positive squares in 4 ways, for example, as 28019914171456 + 93333317280889 = 5293384^2 + 9660917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121353231452345 - 2¹⁰ = 121353231451321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121353231452296 and 121353231452305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54483824 + ... + 56667393.

It is an arithmetic number, because the mean of its divisors is an integer number (18203068245033).

Almost surely, 2^{121353231452345} is an apocalyptic number.

It is an amenable number.

121353231452345 is a deficient number, since it is larger than the sum of its proper divisors (24271314507919).

121353231452345 is a wasteful number, since it uses less digits than its factorization.

121353231452345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111369579.

The product of its digits is 1296000, while the sum is 44.

The spelling of 121353231452345 in words is "one hundred twenty-one trillion, three hundred fifty-three billion, two hundred thirty-one million, four hundred fifty-two thousand, three hundred forty-five".