20130201125 has 8 divisors (see below), whose sum is σ = 25122491160. Its totient is φ = 16104160800.

The previous prime is 20130201107. The next prime is 20130201139. The reversal of 20130201125 is 52110203102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5112679009 + 15017522116 = 71503^2 + 122546^2 .

It is not a de Polignac number, because 20130201125 - 2¹⁸ = 20129938981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80520680 + ... + 80520929.

It is an arithmetic number, because the mean of its divisors is an integer number (3140311395).

Almost surely, 2^20130201125 is an apocalyptic number.

20130201125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20130201125 is a deficient number, since it is larger than the sum of its proper divisors (4992290035).

20130201125 is an equidigital number, since it uses as much as digits as its factorization.

20130201125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161041624 (or 161041614 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 20130201125 its reverse (52110203102), we get a palindrome (72240404227).

The spelling of 20130201125 in words is "twenty billion, one hundred thirty million, two hundred one thousand, one hundred twenty-five".