2125443131 has 16 divisors (see below), whose sum is σ = 2449272000. Its totient is φ = 1806703488.

The previous prime is 2125443101. The next prime is 2125443137. The reversal of 2125443131 is 1313445212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2125443131 - 2²² = 2121248827 is a prime.

It is a super-2 number, since 2×2125443131² = 9035017006230166322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2125443131.

It is not an unprimeable number, because it can be changed into a prime (2125443137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888485 + ... + 890873.

It is an arithmetic number, because the mean of its divisors is an integer number (153079500).

Almost surely, 2^2125443131 is an apocalyptic number.

2125443131 is a deficient number, since it is larger than the sum of its proper divisors (323828869).

2125443131 is a wasteful number, since it uses less digits than its factorization.

2125443131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398.

The product of its digits is 2880, while the sum is 26.

The square root of 2125443131 is about 46102.5284664518. The cubic root of 2125443131 is about 1285.7301549676.

Adding to 2125443131 its reverse (1313445212), we get a palindrome (3438888343).

The spelling of 2125443131 in words is "two billion, one hundred twenty-five million, four hundred forty-three thousand, one hundred thirty-one".