121342053 has 32 divisors (see below), whose sum is σ = 189665280. Its totient is φ = 67576320.

The previous prime is 121342051. The next prime is 121342079. The reversal of 121342053 is 350243121.

It is not a de Polignac number, because 121342053 - 2¹ = 121342051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121342051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144208 + ... + 145046.

It is an arithmetic number, because the mean of its divisors is an integer number (5927040).

Almost surely, 2^121342053 is an apocalyptic number.

It is an amenable number.

121342053 is a deficient number, since it is larger than the sum of its proper divisors (68323227).

121342053 is an equidigital number, since it uses as much as digits as its factorization.

121342053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 121342053 is about 11015.5368911370. The cubic root of 121342053 is about 495.0743730715.

Adding to 121342053 its reverse (350243121), we get a palindrome (471585174).

The spelling of 121342053 in words is "one hundred twenty-one million, three hundred forty-two thousand, fifty-three".