202311142034521 has 4 divisors (see below), whose sum is σ = 217873537575652. Its totient is φ = 186748746493392.

The previous prime is 202311142034467. The next prime is 202311142034543. The reversal of 202311142034521 is 125430241113202.

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 84167046547600 + 118144095486921 = 9174260^2 + 10869411^2 .

It is a cyclic number.

It is not a de Polignac number, because 202311142034521 - 2²³ = 202311133645913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202311142034921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7781197770546 + ... + 7781197770571.

It is an arithmetic number, because the mean of its divisors is an integer number (54468384393913).

Almost surely, 2^{202311142034521} is an apocalyptic number.

It is an amenable number.

202311142034521 is a deficient number, since it is larger than the sum of its proper divisors (15562395541131).

202311142034521 is a wasteful number, since it uses less digits than its factorization.

202311142034521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15562395541130.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 202311142034521 its reverse (125430241113202), we get a palindrome (327741383147723).

The spelling of 202311142034521 in words is "two hundred two trillion, three hundred eleven billion, one hundred forty-two million, thirty-four thousand, five hundred twenty-one".