121320111323233 has 4 divisors (see below), whose sum is σ = 121320143575060. Its totient is φ = 121320079071408.

The previous prime is 121320111323129. The next prime is 121320111323261. The reversal of 121320111323233 is 332323111023121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11699902342144 + 109620208981089 = 3420512^2 + 10469967^2 .

It is a cyclic number.

It is not a de Polignac number, because 121320111323233 - 2⁹ = 121320111322721 is a prime.

It is a super-2 number, since 2×121320111323233² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121320111323833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9604278 + ... + 18299791.

It is an arithmetic number, because the mean of its divisors is an integer number (30330035893765).

Almost surely, 2^{121320111323233} is an apocalyptic number.

It is an amenable number.

121320111323233 is a deficient number, since it is larger than the sum of its proper divisors (32251827).

121320111323233 is an equidigital number, since it uses as much as digits as its factorization.

121320111323233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32251826.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 121320111323233 its reverse (332323111023121), we get a palindrome (453643222346354).

The spelling of 121320111323233 in words is "one hundred twenty-one trillion, three hundred twenty billion, one hundred eleven million, three hundred twenty-three thousand, two hundred thirty-three".