20012126310 has 48 divisors (see below), whose sum is σ = 56761670160. Its totient is φ = 4851424320.

The previous prime is 20012126297. The next prime is 20012126339. The reversal of 20012126310 is 1362121002.

20012126310 is a `hidden beast` number, since 20 + 0 + 1 + 2 + 12 + 631 + 0 = 666.

It is a super-2 number, since 2×20012126310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10106145 + ... + 10108124.

It is an arithmetic number, because the mean of its divisors is an integer number (1182534795).

Almost surely, 2^20012126310 is an apocalyptic number.

20012126310 is an abundant number, since it is smaller than the sum of its proper divisors (36749543850).

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

20012126310 is a wasteful number, since it uses less digits than its factorization.

20012126310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20214293 (or 20214290 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20012126310 its reverse (1362121002), we get a palindrome (21374247312).

The spelling of 20012126310 in words is "twenty billion, twelve million, one hundred twenty-six thousand, three hundred ten".