20130134025 has 48 divisors (see below), whose sum is σ = 33496766784. Its totient is φ = 10666951680.

The previous prime is 20130134023. The next prime is 20130134029. The reversal of 20130134025 is 52043103102.

It is not a de Polignac number, because 20130134025 - 2¹ = 20130134023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20130133992 and 20130134010.

It is not an unprimeable number, because it can be changed into a prime (20130134021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10781142 + ... + 10783008.

It is an arithmetic number, because the mean of its divisors is an integer number (697849308).

Almost surely, 2^20130134025 is an apocalyptic number.

20130134025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20130134025 is a deficient number, since it is larger than the sum of its proper divisors (13366632759).

20130134025 is a wasteful number, since it uses less digits than its factorization.

20130134025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2725 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20130134025 its reverse (52043103102), we get a palindrome (72173237127).

The spelling of 20130134025 in words is "twenty billion, one hundred thirty million, one hundred thirty-four thousand, twenty-five".