132421432551 has 4 divisors (see below), whose sum is σ = 176561910072. Its totient is φ = 88280955032.

The previous prime is 132421432531. The next prime is 132421432567. The reversal of 132421432551 is 155234124231.

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

It is a cyclic number.

It is not a de Polignac number, because 132421432551 - 2⁵ = 132421432519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132421432531) 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, 22070238756 + ... + 22070238761.

It is an arithmetic number, because the mean of its divisors is an integer number (44140477518).

Almost surely, 2^132421432551 is an apocalyptic number.

132421432551 is a deficient number, since it is larger than the sum of its proper divisors (44140477521).

132421432551 is an equidigital number, since it uses as much as digits as its factorization.

132421432551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44140477520.

The product of its digits is 28800, while the sum is 33.

Adding to 132421432551 its reverse (155234124231), we get a palindrome (287655556782).

The spelling of 132421432551 in words is "one hundred thirty-two billion, four hundred twenty-one million, four hundred thirty-two thousand, five hundred fifty-one".