121002053 has 4 divisors (see below), whose sum is σ = 121038528. Its totient is φ = 120965580.

The previous prime is 121002047. The next prime is 121002061. The reversal of 121002053 is 350200121.

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: 350200121 = 163 ⋅2148467.

It is a cyclic number.

It is not a de Polignac number, because 121002053 - 2⁶ = 121001989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12701 + ... + 20082.

It is an arithmetic number, because the mean of its divisors is an integer number (30259632).

Almost surely, 2^121002053 is an apocalyptic number.

It is an amenable number.

121002053 is a deficient number, since it is larger than the sum of its proper divisors (36475).

121002053 is an equidigital number, since it uses as much as digits as its factorization.

121002053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36474.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 121002053 is about 11000.0933177860. The cubic root of 121002053 is about 494.6115416417.

Adding to 121002053 its reverse (350200121), we get a palindrome (471202174).

The spelling of 121002053 in words is "one hundred twenty-one million, two thousand, fifty-three".