20523123110 has 16 divisors (see below), whose sum is σ = 42218996256. Its totient is φ = 7036499328.

The previous prime is 20523123107. The next prime is 20523123113. The reversal of 20523123110 is 1132132502.

It is an interprime number because it is at equal distance from previous prime (20523123107) and next prime (20523123113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20523123113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146593667 + ... + 146593806.

It is an arithmetic number, because the mean of its divisors is an integer number (2638687266).

Almost surely, 2^20523123110 is an apocalyptic number.

20523123110 is an abundant number, since it is smaller than the sum of its proper divisors (21695873146).

20523123110 is a wasteful number, since it uses less digits than its factorization.

20523123110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293187487.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 20523123110 its reverse (1132132502), we get a palindrome (21655255612).

The spelling of 20523123110 in words is "twenty billion, five hundred twenty-three million, one hundred twenty-three thousand, one hundred ten".