2021420151053 has 8 divisors (see below), whose sum is σ = 2142824698872. Its totient is φ = 1900293101056.

The previous prime is 2021420150993. The next prime is 2021420151067. The reversal of 2021420151053 is 3501510241202.

It can be written as a sum of positive squares in 4 ways, for example, as 1215854664964 + 805565486089 = 1102658^2 + 897533^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2021420151053 - 2⁸ = 2021420150797 is a prime.

It is a super-2 number, since 2×2021420151053² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021420151083) 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, 69359450 + ... + 69388587.

It is an arithmetic number, because the mean of its divisors is an integer number (267853087359).

Almost surely, 2^{2021420151053} is an apocalyptic number.

It is an amenable number.

2021420151053 is a deficient number, since it is larger than the sum of its proper divisors (121404547819).

2021420151053 is a wasteful number, since it uses less digits than its factorization.

2021420151053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138748911.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 2021420151053 its reverse (3501510241202), we get a palindrome (5522930392255).

The spelling of 2021420151053 in words is "two trillion, twenty-one billion, four hundred twenty million, one hundred fifty-one thousand, fifty-three".