121133401 has 4 divisors (see below), whose sum is σ = 122205492. Its totient is φ = 120061312.

The previous prime is 121133371. The next prime is 121133423. The reversal of 121133401 is 104331121.

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 10883401 + 110250000 = 3299^2 + 10500^2 .

It is a cyclic number.

It is not a de Polignac number, because 121133401 - 2¹⁵ = 121100633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121133471) 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, 535876 + ... + 536101.

It is an arithmetic number, because the mean of its divisors is an integer number (30551373).

Almost surely, 2^121133401 is an apocalyptic number.

It is an amenable number.

121133401 is a deficient number, since it is larger than the sum of its proper divisors (1072091).

121133401 is a wasteful number, since it uses less digits than its factorization.

121133401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072090.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 121133401 is about 11006.0620114553. The cubic root of 121133401 is about 494.7904442370.

Adding to 121133401 its reverse (104331121), we get a palindrome (225464522).

The spelling of 121133401 in words is "one hundred twenty-one million, one hundred thirty-three thousand, four hundred one".