121120121233 has 4 divisors (see below), whose sum is σ = 121121304628. Its totient is φ = 121118937840.

The previous prime is 121120121231. The next prime is 121120121263. The reversal of 121120121233 is 332121021121.

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 72236237824 + 48883883409 = 268768^2 + 221097^2 .

It is a cyclic number.

It is not a de Polignac number, because 121120121233 - 2¹ = 121120121231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121120121233.

It is not an unprimeable number, because it can be changed into a prime (121120121231) 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, 421938 + ... + 648283.

It is an arithmetic number, because the mean of its divisors is an integer number (30280326157).

Almost surely, 2^121120121233 is an apocalyptic number.

It is an amenable number.

121120121233 is a deficient number, since it is larger than the sum of its proper divisors (1183395).

121120121233 is a wasteful number, since it uses less digits than its factorization.

121120121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183394.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121120121233 its reverse (332121021121), we get a palindrome (453241142354).

The spelling of 121120121233 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty-three".