2145143103125 has 96 divisors (see below), whose sum is σ = 3033987062400. Its totient is φ = 1502820000000.

The previous prime is 2145143103121. The next prime is 2145143103133. The reversal of 2145143103125 is 5213013415412.

It is not a de Polignac number, because 2145143103125 - 2² = 2145143103121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2145143103091 and 2145143103100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145143103121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 128451026 + ... + 128467724.

It is an arithmetic number, because the mean of its divisors is an integer number (31604031900).

Almost surely, 2^{2145143103125} is an apocalyptic number.

2145143103125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145143103125 is a deficient number, since it is larger than the sum of its proper divisors (888843959275).

2145143103125 is a wasteful number, since it uses less digits than its factorization.

2145143103125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16873 (or 16853 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 2145143103125 its reverse (5213013415412), we get a palindrome (7358156518537).

The spelling of 2145143103125 in words is "two trillion, one hundred forty-five billion, one hundred forty-three million, one hundred three thousand, one hundred twenty-five".