151321403504243 has 32 divisors (see below), whose sum is σ = 173458189632000. Its totient is φ = 129315175799040.

The previous prime is 151321403504209. The next prime is 151321403504267. The reversal of 151321403504243 is 342405304123151.

It is a de Polignac number, because none of the positive numbers 2^k-151321403504243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 151321403504197 and 151321403504206.

It is not an unprimeable number, because it can be changed into a prime (151321403501243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12640659248 + ... + 12640671218.

It is an arithmetic number, because the mean of its divisors is an integer number (5420568426000).

Almost surely, 2^{151321403504243} is an apocalyptic number.

151321403504243 is a deficient number, since it is larger than the sum of its proper divisors (22136786127757).

151321403504243 is a wasteful number, since it uses less digits than its factorization.

151321403504243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16395.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 151321403504243 its reverse (342405304123151), we get a palindrome (493726707627394).

The spelling of 151321403504243 in words is "one hundred fifty-one trillion, three hundred twenty-one billion, four hundred three million, five hundred four thousand, two hundred forty-three".