2125440020403 has 36 divisors (see below), whose sum is σ = 3629863821168. Its totient is φ = 1194626694240.

The previous prime is 2125440020399. The next prime is 2125440020437. The reversal of 2125440020403 is 3040200445212.

2125440020403 is a `hidden beast` number, since 2 + 1 + 2 + 54 + 400 + 204 + 0 + 3 = 666.

It is not a de Polignac number, because 2125440020403 - 2² = 2125440020399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2125440020303) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39477951 + ... + 39531752.

It is an arithmetic number, because the mean of its divisors is an integer number (100829550588).

Almost surely, 2^{2125440020403} is an apocalyptic number.

2125440020403 is a deficient number, since it is larger than the sum of its proper divisors (1504423800765).

2125440020403 is a wasteful number, since it uses less digits than its factorization.

2125440020403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79009784 (or 79009774 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 2125440020403 its reverse (3040200445212), we get a palindrome (5165640465615).

The spelling of 2125440020403 in words is "two trillion, one hundred twenty-five billion, four hundred forty million, twenty thousand, four hundred three".