20125034340 has 48 divisors (see below), whose sum is σ = 57549042432. Its totient is φ = 5252490496.

The previous prime is 20125034311. The next prime is 20125034351. The reversal of 20125034340 is 4343052102.

It is a self number, because there is not a number n which added to its sum of digits gives 20125034340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565449 + ... + 3571088.

It is an arithmetic number, because the mean of its divisors is an integer number (1198938384).

Almost surely, 2^20125034340 is an apocalyptic number.

20125034340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20125034340 is an abundant number, since it is smaller than the sum of its proper divisors (37424008092).

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

20125034340 is a wasteful number, since it uses less digits than its factorization.

20125034340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7136596 (or 7136594 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20125034340 its reverse (4343052102), we get a palindrome (24468086442).

The spelling of 20125034340 in words is "twenty billion, one hundred twenty-five million, thirty-four thousand, three hundred forty".