121552345331223 has 8 divisors (see below), whose sum is σ = 162089638278528. Its totient is φ = 81024974635704.

The previous prime is 121552345331143. The next prime is 121552345331227. The reversal of 121552345331223 is 322133543255121.

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

It is not a de Polignac number, because 121552345331223 - 2²¹ = 121552343234071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121552345331227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2480534361 + ... + 2480583362.

It is an arithmetic number, because the mean of its divisors is an integer number (20261204784816).

Almost surely, 2^{121552345331223} is an apocalyptic number.

121552345331223 is a deficient number, since it is larger than the sum of its proper divisors (40537292947305).

121552345331223 is an equidigital number, since it uses as much as digits as its factorization.

121552345331223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961125893.

The product of its digits is 648000, while the sum is 42.

Adding to 121552345331223 its reverse (322133543255121), we get a palindrome (443685888586344).

The spelling of 121552345331223 in words is "one hundred twenty-one trillion, five hundred fifty-two billion, three hundred forty-five million, three hundred thirty-one thousand, two hundred twenty-three".