141420203203021 has 4 divisors (see below), whose sum is σ = 141674099439132. Its totient is φ = 141166306966912.

The previous prime is 141420203203003. The next prime is 141420203203057. The reversal of 141420203203021 is 120302302024141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55140441286921 + 86279761916100 = 7425661^2 + 9288690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141420203203021 is a prime.

It is a super-2 number, since 2×141420203203021² (a number of 29 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 (141420203233021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126948117220 + ... + 126948118333.

It is an arithmetic number, because the mean of its divisors is an integer number (35418524859783).

Almost surely, 2^{141420203203021} is an apocalyptic number.

It is an amenable number.

141420203203021 is a deficient number, since it is larger than the sum of its proper divisors (253896236111).

141420203203021 is an equidigital number, since it uses as much as digits as its factorization.

141420203203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253896236110.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 141420203203021 its reverse (120302302024141), we get a palindrome (261722505227162).

The spelling of 141420203203021 in words is "one hundred forty-one trillion, four hundred twenty billion, two hundred three million, two hundred three thousand, twenty-one".