151312441521 has 4 divisors (see below), whose sum is σ = 201749922032. Its totient is φ = 100874961012.

The previous prime is 151312441517. The next prime is 151312441523. The reversal of 151312441521 is 125144213151.

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 not a de Polignac number, because 151312441521 - 2² = 151312441517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151312441523) 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, 25218740251 + ... + 25218740256.

It is an arithmetic number, because the mean of its divisors is an integer number (50437480508).

Almost surely, 2^151312441521 is an apocalyptic number.

It is an amenable number.

151312441521 is a deficient number, since it is larger than the sum of its proper divisors (50437480511).

151312441521 is an equidigital number, since it uses as much as digits as its factorization.

151312441521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50437480510.

The product of its digits is 4800, while the sum is 30.

Adding to 151312441521 its reverse (125144213151), we get a palindrome (276456654672).

The spelling of 151312441521 in words is "one hundred fifty-one billion, three hundred twelve million, four hundred forty-one thousand, five hundred twenty-one".