121031441 has 4 divisors (see below), whose sum is σ = 121293312. Its totient is φ = 120769572.

The previous prime is 121031437. The next prime is 121031461. The reversal of 121031441 is 144130121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144130121 = 23 ⋅6266527.

It is a cyclic number.

It is not a de Polignac number, because 121031441 - 2² = 121031437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121031461) 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, 130241 + ... + 131166.

It is an arithmetic number, because the mean of its divisors is an integer number (30323328).

Almost surely, 2^121031441 is an apocalyptic number.

It is an amenable number.

121031441 is a deficient number, since it is larger than the sum of its proper divisors (261871).

121031441 is an equidigital number, since it uses as much as digits as its factorization.

121031441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261870.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 121031441 is about 11001.4290435379. The cubic root of 121031441 is about 494.6515808174.

Adding to 121031441 its reverse (144130121), we get a palindrome (265161562).

The spelling of 121031441 in words is "one hundred twenty-one million, thirty-one thousand, four hundred forty-one".