121153542324445 has 8 divisors (see below), whose sum is σ = 145403438409144. Its totient is φ = 96910042113024.

The previous prime is 121153542324421. The next prime is 121153542324469. The reversal of 121153542324445 is 544423245351121.

It is an interprime number because it is at equal distance from previous prime (121153542324421) and next prime (121153542324469).

It can be written as a sum of positive squares in 4 ways, for example, as 7966455445081 + 113187086879364 = 2822491^2 + 10638942^2 .

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 121153542324445 - 2³¹ = 121151394840797 is a prime.

It is a super-2 number, since 2×121153542324445² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121153542324395 and 121153542324404.

It is a congruent number.

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, 1598926644 + ... + 1599002413.

It is an arithmetic number, because the mean of its divisors is an integer number (18175429801143).

Almost surely, 2^{121153542324445} is an apocalyptic number.

It is an amenable number.

121153542324445 is a deficient number, since it is larger than the sum of its proper divisors (24249896084699).

121153542324445 is an equidigital number, since it uses as much as digits as its factorization.

121153542324445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197936639.

The product of its digits is 2304000, while the sum is 46.

Adding to 121153542324445 its reverse (544423245351121), we get a palindrome (665576787675566).

The spelling of 121153542324445 in words is "one hundred twenty-one trillion, one hundred fifty-three billion, five hundred forty-two million, three hundred twenty-four thousand, four hundred forty-five".