151530321403 has 2 divisors, whose sum is σ = 151530321404. Its totient is φ = 151530321402.

The previous prime is 151530321401. The next prime is 151530321433. The reversal of 151530321403 is 304123035151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151530321403 - 2¹ = 151530321401 is a prime.

It is a super-2 number, since 2×151530321403² (a number of 23 digits) contains 22 as substring.

Together with 151530321401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (151530321401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75765160701 + 75765160702.

It is an arithmetic number, because the mean of its divisors is an integer number (75765160702).

Almost surely, 2^151530321403 is an apocalyptic number.

151530321403 is a deficient number, since it is larger than the sum of its proper divisors (1).

151530321403 is an equidigital number, since it uses as much as digits as its factorization.

151530321403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 151530321403 its reverse (304123035151), we get a palindrome (455653356554).

The spelling of 151530321403 in words is "one hundred fifty-one billion, five hundred thirty million, three hundred twenty-one thousand, four hundred three".