20122313500 has 48 divisors (see below), whose sum is σ = 46532277792. Its totient is φ = 7575456000.

The previous prime is 20122313441. The next prime is 20122313539. The reversal of 20122313500 is 531322102.

It is a congruent number.

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, 1175166 + ... + 1192165.

It is an arithmetic number, because the mean of its divisors is an integer number (969422454).

Almost surely, 2^20122313500 is an apocalyptic number.

20122313500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122313500 is an abundant number, since it is smaller than the sum of its proper divisors (26409964292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122313500 is a wasteful number, since it uses less digits than its factorization.

20122313500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367367 (or 2367355 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 20122313500 its reverse (531322102), we get a palindrome (20653635602).

The spelling of 20122313500 in words is "twenty billion, one hundred twenty-two million, three hundred thirteen thousand, five hundred".