20523244315 has 16 divisors (see below), whose sum is σ = 28153356480. Its totient is φ = 14069485440.

The previous prime is 20523244243. The next prime is 20523244361. The reversal of 20523244315 is 51344232502.

It is not a de Polignac number, because 20523244315 - 2⁹ = 20523243803 is a prime.

It is a super-3 number, since 3×20523244315³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67821 + ... + 213649.

It is an arithmetic number, because the mean of its divisors is an integer number (1759584780).

Almost surely, 2^20523244315 is an apocalyptic number.

20523244315 is a deficient number, since it is larger than the sum of its proper divisors (7630112165).

20523244315 is a wasteful number, since it uses less digits than its factorization.

20523244315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149862.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20523244315 its reverse (51344232502), we get a palindrome (71867476817).

The spelling of 20523244315 in words is "twenty billion, five hundred twenty-three million, two hundred forty-four thousand, three hundred fifteen".