20523130151 has 2 divisors, whose sum is σ = 20523130152. Its totient is φ = 20523130150.

The previous prime is 20523130139. The next prime is 20523130157. The reversal of 20523130151 is 15103132502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20523130151 - 2²² = 20518935847 is a prime.

It is a super-3 number, since 3×20523130151³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20523130157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10261565075 + 10261565076.

It is an arithmetic number, because the mean of its divisors is an integer number (10261565076).

Almost surely, 2^20523130151 is an apocalyptic number.

20523130151 is a deficient number, since it is larger than the sum of its proper divisors (1).

20523130151 is an equidigital number, since it uses as much as digits as its factorization.

20523130151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 20523130151 its reverse (15103132502), we get a palindrome (35626262653).

The spelling of 20523130151 in words is "twenty billion, five hundred twenty-three million, one hundred thirty thousand, one hundred fifty-one".