2125513103 has 16 divisors (see below), whose sum is σ = 2498174784. Its totient is φ = 1770455040.

The previous prime is 2125513081. The next prime is 2125513129. The reversal of 2125513103 is 3013155212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2125513103 - 2⁸ = 2125512847 is a prime.

It is a super-4 number, since 4×2125513103⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125513133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59351 + ... + 88167.

It is an arithmetic number, because the mean of its divisors is an integer number (156135924).

Almost surely, 2^2125513103 is an apocalyptic number.

2125513103 is a deficient number, since it is larger than the sum of its proper divisors (372661681).

2125513103 is a wasteful number, since it uses less digits than its factorization.

2125513103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29122.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2125513103 is about 46103.2873339852. The cubic root of 2125513103 is about 1285.7442640447.

Adding to 2125513103 its reverse (3013155212), we get a palindrome (5138668315).

The spelling of 2125513103 in words is "two billion, one hundred twenty-five million, five hundred thirteen thousand, one hundred three".