32121042452553 has 4 divisors (see below), whose sum is σ = 42828056603408. Its totient is φ = 21414028301700.

The previous prime is 32121042452533. The next prime is 32121042452581. The reversal of 32121042452553 is 35525424012123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 32121042452553 - 2²⁰ = 32121041403977 is a prime.

It is a super-2 number, since 2×32121042452553² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32121042452533) 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, 5353507075423 + ... + 5353507075428.

It is an arithmetic number, because the mean of its divisors is an integer number (10707014150852).

Almost surely, 2^{32121042452553} is an apocalyptic number.

It is an amenable number.

32121042452553 is a deficient number, since it is larger than the sum of its proper divisors (10707014150855).

32121042452553 is a wasteful number, since it uses less digits than its factorization.

32121042452553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10707014150854.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 32121042452553 its reverse (35525424012123), we get a palindrome (67646466464676).

The spelling of 32121042452553 in words is "thirty-two trillion, one hundred twenty-one billion, forty-two million, four hundred fifty-two thousand, five hundred fifty-three".