132121431242551 has 8 divisors (see below), whose sum is σ = 132289229944160. Its totient is φ = 131953671602208.

The previous prime is 132121431242531. The next prime is 132121431242569. The reversal of 132121431242551 is 155242134121231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132121431242551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132121431242551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132121431242531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2993211 + ... + 16528828.

It is an arithmetic number, because the mean of its divisors is an integer number (16536153743020).

Almost surely, 2^{132121431242551} is an apocalyptic number.

132121431242551 is a deficient number, since it is larger than the sum of its proper divisors (167798701609).

132121431242551 is an equidigital number, since it uses as much as digits as its factorization.

132121431242551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19530633.

The product of its digits is 57600, while the sum is 37.

Adding to 132121431242551 its reverse (155242134121231), we get a palindrome (287363565363782).

The spelling of 132121431242551 in words is "one hundred thirty-two trillion, one hundred twenty-one billion, four hundred thirty-one million, two hundred forty-two thousand, five hundred fifty-one".