121020053 has 12 divisors (see below), whose sum is σ = 153577152. Its totient is φ = 94300920.

The previous prime is 121020019. The next prime is 121020061. The reversal of 121020053 is 350020121.

It is a happy number.

It is not a de Polignac number, because 121020053 - 2⁶ = 121019989 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 (121020073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111725 + ... + 112802.

It is an arithmetic number, because the mean of its divisors is an integer number (12798096).

Almost surely, 2^121020053 is an apocalyptic number.

It is an amenable number.

121020053 is a deficient number, since it is larger than the sum of its proper divisors (32557099).

121020053 is a wasteful number, since it uses less digits than its factorization.

121020053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224552 (or 224545 counting only the distinct ones).

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

The square root of 121020053 is about 11000.9114622380. The cubic root of 121020053 is about 494.6360662017.

Adding to 121020053 its reverse (350020121), we get a palindrome (471040174).

The spelling of 121020053 in words is "one hundred twenty-one million, twenty thousand, fifty-three".