332154132421 has 4 divisors (see below), whose sum is σ = 332203050144. Its totient is φ = 332105214700.

The previous prime is 332154132383. The next prime is 332154132439. The reversal of 332154132421 is 124231451233.

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 a cyclic number.

It is not a de Polignac number, because 332154132421 - 2¹³ = 332154124229 is a prime.

It is a super-2 number, since 2×332154132421² (a number of 24 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 (332154132451) 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, 24448675 + ... + 24462256.

It is an arithmetic number, because the mean of its divisors is an integer number (83050762536).

Almost surely, 2^332154132421 is an apocalyptic number.

It is an amenable number.

332154132421 is a deficient number, since it is larger than the sum of its proper divisors (48917723).

332154132421 is an equidigital number, since it uses as much as digits as its factorization.

332154132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48917722.

The product of its digits is 17280, while the sum is 31.

Adding to 332154132421 its reverse (124231451233), we get a palindrome (456385583654).

The spelling of 332154132421 in words is "three hundred thirty-two billion, one hundred fifty-four million, one hundred thirty-two thousand, four hundred twenty-one".