132451322021 has 4 divisors (see below), whose sum is σ = 136723945344. Its totient is φ = 128178698700.

The previous prime is 132451321979. The next prime is 132451322033. The reversal of 132451322021 is 120223154231.

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 132451322021 - 2¹⁸ = 132451059877 is a prime.

It is a super-2 number, since 2×132451322021² (a number of 23 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 (132451322071) 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, 2136311615 + ... + 2136311676.

It is an arithmetic number, because the mean of its divisors is an integer number (34180986336).

Almost surely, 2^132451322021 is an apocalyptic number.

It is an amenable number.

132451322021 is a deficient number, since it is larger than the sum of its proper divisors (4272623323).

132451322021 is an equidigital number, since it uses as much as digits as its factorization.

132451322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272623322.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 132451322021 its reverse (120223154231), we get a palindrome (252674476252).

The spelling of 132451322021 in words is "one hundred thirty-two billion, four hundred fifty-one million, three hundred twenty-two thousand, twenty-one".