20152315241 has 4 divisors (see below), whose sum is σ = 20172054084. Its totient is φ = 20132576400.

The previous prime is 20152315231. The next prime is 20152315259. The reversal of 20152315241 is 14251325102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16002250000 + 4150065241 = 126500^2 + 64421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20152315241 is a prime.

It is a super-2 number, since 2×20152315241² (a number of 21 digits) contains 22 as substring.

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 20152315241.

It is not an unprimeable number, because it can be changed into a prime (20152315231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9867890 + ... + 9869931.

It is an arithmetic number, because the mean of its divisors is an integer number (5043013521).

Almost surely, 2^20152315241 is an apocalyptic number.

It is an amenable number.

20152315241 is a deficient number, since it is larger than the sum of its proper divisors (19738843).

20152315241 is a wasteful number, since it uses less digits than its factorization.

20152315241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19738842.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 20152315241 in words is "twenty billion, one hundred fifty-two million, three hundred fifteen thousand, two hundred forty-one".