121021053 has 8 divisors (see below), whose sum is σ = 165297216. Its totient is φ = 78712800.

The previous prime is 121021039. The next prime is 121021057. The reversal of 121021053 is 350120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121021053 - 2⁴ = 121021037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491833 + ... + 492078.

It is an arithmetic number, because the mean of its divisors is an integer number (20662152).

Almost surely, 2^121021053 is an apocalyptic number.

It is an amenable number.

121021053 is a deficient number, since it is larger than the sum of its proper divisors (44276163).

121021053 is an equidigital number, since it uses as much as digits as its factorization.

121021053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983955.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 121021053 is about 11000.9569129235. The cubic root of 121021053 is about 494.6374286059.

Adding to 121021053 its reverse (350120121), we get a palindrome (471141174).

The spelling of 121021053 in words is "one hundred twenty-one million, twenty-one thousand, fifty-three".